摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500307

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500308

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn.These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members.EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500309

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

312 COLLIN THE RAPID DETERMINATION OF BISMUTH AND COPPER IN The Rapid Determination of Bismuth and Electrolysis. Copper in Lead Bullion by Internal BY ELLA M. COLLIN B.Sc. A.I.C. (Read at the Meeting February 5 1930.) BISMUTH occurs frequently in small quantities in lead ores lead bullion and other commercial lead products and its accurate determination is of great im-portance. For small amounts of bismuth the electrolytic separation from lead by grading the potential with the aid of an auxiliary electrode is not satisfactory, and the method here described was devised for the determination of amounts of bismuth less than 0.01 grm. in the presence of up to 10 grms. of lead since the percentage of bismuth present in a lead product is usually less than 0.10 per cent. The work was done with the internal electrolysis apparatus designed by Dr.Sand for this purpose and described by him in a separate paper. Preliminar LEAD BULLIOK BY INTERNAL ELECTROLYSIS 313 experiments were made with a cathode of platinum foil in the shape of an inverted T the horizontal limb of which was bent to form a small vertical cylinder but subsequently a gauze electrode was used as it was found that the deposit was much more adherent and satisfactory. THE SEPARATION OF BISMUTH FROM LEAD.-Ten grms. of pure lead were dissolved in 60 C.C. of 20 per cent. nitric acid heated gently and the excess of acid neutralised with ammonia; then 3 C.C. of concentrated nitric acid were added the solution was diluted to 200 c.c. and 3 drops of a 50 per cent. solution of hydrazine hydrate (Kahlbaum) added to decompose any oxides of nitrogen present.In subsequent experiments hydroxylamine hydrochloride was used as it is much cheaper and equally effective. A standard solution of bismuth in nitric acid was added in known amount and the solution electrolysed in the apparatus as described elsewhere. Experiments at a temperature below 80" C. were unsatisfactory as the deposit was spongy and non-adherent. When the electrolysis was done at a temperature of 85-90' C. the bismuth deposited was light grey in colour and very adherent. The anode compartments contained a 5 per cent. solution of lead nitrate acidified with nitric acid. At the conclusion of each electrolysis the electrode after washing with water was dipped successively in alcohol and ether, and dried by holding it some distance over a Bunsen flame care being taken not to ignite the ether.In all the experiments described in this paper it was found unnecessary owing to the low percentage of the metal to be determined to wash out the anode compartment before the conclusion of the electrolysis. TABLE I. Bismuth added. Grm. 0.0050 0-0050 0.0040 0*0040 0.0050 0.0040 Bismuth found. Grm. 0.0049 0.0047 0.0038 0.0037 0-0051 0.0042 Time. Minutes. 13 11 15 15 (continued another 5 minutes; 17 do. do. 17 no increase in weight) In addition to bismuth the impurities present in lead bullion and likely to interfere in this method are copper silver and antimony and experiments were made to find means of eliminating the effects of these elements.EXPERIMENTS IN TARTRATE SoLuTroN.-Lead bullions containing much tin or antimony do not give a clear solution in nitric acid and the precipitate may contain some of the bismuth present in the sample. A clear solution can however, be obtained by the use of a mixture of nitric and tartaric acids for dissolving the sample and it was found that the presence of tartaric acid in the electrolyte was in no way detrimental to the deposition of bismuth and copper. The solutions were prepared and the electrolysis carried out as described for the separation o 314 COLLIN THE RAPID DETERMINATION OF BISMUTH AND COPPER IN bismuth from lead in nitric acid solution with the exception that 1 grm. of tartaric acid was added to the nitric acid used for dissolving the sample.Bismuth added. Grm. 0.0050 0.0050 04050 0.0050 0.0015 0.0035 0.0025 0.0050 TABLE 11. Bismuth found. Grm. 0.0049 0*0050 0*0048 0*0048 0.0014 0.0036 0.0025 0*0050 Time. Minutes . 10 10 10 10 10 10 10 10 It was found necessary to keep the surface of the lead anodes scraped free from the deposit of lead tartrate which tended to form on them. SILvER.-Most lead bullions contain silver which would be deposited during the electrolysis and cause a loose deposit but this metal can be removed satis-factorily by the addition of a small amount of hydrochloric acid the deposition of bismuth being unaffected by the presence of small amounts of chlorides and there being no deleterious action on the platinum cathode.ANTIMONY.-A standard solution of antimony was prepared by dissolving metallic antimony (Kahlbaum) in a mixture of nitric and tartaric acids and known amounts were added to a solution of lead prepared as described above and electrolysed. Erratic results were obtained and only a small proportion of the antimony was deposited. The standard solution was found to contain some tri-valent antimony contrary to expectations from the method of its preparation. Investigations with a freshly-prepared solution of antimonious chloride showed that trivalent antimony was completely deposited. TABLE 111. Antimony Antimony added (as SbCl,). found. Grm. Gm. 0.0132 0.0130 0.0132 0.0136 0.0132 0.0134 0.0132 0.0132 In each case the solution after electrolysis was tested and found to be free from antimony.Experiments with antimonic chloride showed that pentavalent antimony was not deposited under the conditions of experiment. It was not found possible to reduce pentavalent antimony to the trivalent con-dition in a solution which would be suitable for subsequent electrolysis hydroxyl-amine hydrazine phosphite hypophosphite and potassium iodide being trie LEAD BULLION BY INTERNAL ELECTROLYSIS 315 without success. As it was found impossible to reduce antimony with a view to its subsequent quantitative determination experiments were made to find the most suitable oxidising agent for converting any trivalent antimony present into the pentavalent state. Potassium dichromate and potassium chlorate were not satisfactory but potassium permanganate gave good results and by the addition of a 2 per cent.solution of this reagent until it was no longer decolorised (the excess being removed by the subsequent addition of hydrazine or hydroxylamine), the antimony was converted completely into the pentavalent condition and its deposition inhibited. The tartaric acid present does not react with the per-manganate provided the solution be cold. CoPPER.-Copper is deposited under the same conditions as bismuth and therefore in the electrolysis of a solution containing both these elements they will be deposited together. Experiments were made on the deposition of copper with this apparatus both alone and together with bismuth. The solution for electrolysis was prepared as described above in the separation of bismuth from lead and the results are shown in Table IV.Copper added. Grm. TABLE IV. Bismuth added. Grm. Weight of metal deposited. Grm. 0-0006 Nil 0.0006 0.0062 Nil 0.0063 0-0063 0.0030 0-0094 The most rapid and satisfactory way of separating the combined deposit was found to be the usual method employing ammonia and ammonium carbonate. The deposit is dissolved in a small amount of nitric acid (1 1). The type of electrode used allows this operation to be carried out in a small beaker of about 50 C.C. capacity. The electrode is then carefully washed with water the solution is neutralised with ammonia and ammonium carbonate added in slight excess. The liquid is warmed gently to facilitate the settling of the precipitate and then filtered the precipitate being washed with 2 per cent.ammonia. The filtrate is acidified with nitric acid with the addition of an excess of 2 C.C. of concentrated acid the solution heated to about 80" C. and electrolysed in the same apparatus used for the first deposition in a volume of about 200 C.C. The precipitate is dissolved in dilute nitric acid and electrolysed in the same way as the copper at a temperature of 85-90" C. As a rule it was not found necessary to make a double separation of the bismuth and copper as the bismuth deposited after the first separation was found to be free from copper but when the amount of copper present is more than about 0.03 grm. it is advisable to test the bismuth deposit to ensure that the separation is complete.The following experiments were carried out by adding known amounts of bismuth and copper to a solution containing 10 grms. of lead as nitrate and 1 grm 316 COLLIN THE RAPID DETERMINATION OF BISMUTH AND COPPER IN of tartaric acid which was prepared and electrolysed as described above and the combined deposit then separated. Each electrolysis was carried out for 10 minutes. Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper TABLE V. Amount added. Grm. 0*0040 0.007 1 0*0050 0.0030 0*0040 0*0050 0.0035 0*0025 0*0030 0.0025 0*0030 0.0025 0.0035 0.0030 Amount found. Grm . 0.0039 0*0070 0.0051 0.0028 0.0038 0.0048 0.0036 0.0025 0*0030 0.0025 0-0030 0.0025 0.0033 0.003 1 From the experiments described above it is shown that under suitable con-ditions the bismuth and copper present in a sample of lead bullion can be deposited together free from other elements and can then be separateIy determined.METHOD FOR THE DETERMINATION OF BISMUTH AND COPPER IN LEAD BULLION. -Five grms. of the sample are dissolved in 50 C.C. of 20 per cent. nitric acid with the addition of 1 grm. of tartaric acid. (If the bismuth content is known to be low 10 gnns. of the sample are taken and the amount of nitric acid increased proportionately.) Two C.C. of 2 per cent. hydrochloric acid are added and the pre-cipitate of silver chloride is allowed to coagulate a t a gentle heat and then filtered. off together with any insoluble residue from the lead.The precipitate is washed well with hot water and the filtrate is diluted to about 100 C.C. and cooled; then a 2 per cent. solution of potassium permanganate is added as long a s it is decolorised to convert any trivalent antimony present into the pentavalent con-dition. Five C.C. of a 5 per cent. solution of hydroxylamine hydrochloride are added and the solution after dilution to about 200 C.C. in volume is electrolysed in the internal electrolysis apparatus at a temperature of 85-90' C. for 15 minutes. It was not found necessary to neutralise the solution and re-adjust the acidity prior to electrolysis as in the earlier experiments since the excess acid remaining after the solution of the sample was sufficient. The combined deposit of bismuth and copper is treated as described above.It is not necessary to weigh the deposit before separation except as an additional check if both the bismuth and copper are to be determined. It was found during the course of several experiments that the deposition was complete in every case after 15 minutes and that a further period of elec-trolysis gave no increase in weight of the deposit; but should the deposit contai LEAD BULLION BY INTERNAL ELECTROLYSIS 317 more than about 8 mgrms. of bismuth it is advisable to replace the electrode after the removal of the deposit to ensure complete deposition. Any additional metal deposited can be combined with the original deposit. A much larger amount of copper than of bismuth can be deposited in the stated time and up to 0.05 grm.of this metal can be accurately determined but the amount of bismuth present should not exceed 0.01 grm. as larger quantities do not adhere satisfactorily to the electrode. REsuLTs.-The experiments recorded in Table VI were made by starting from pure lead (5 or 10 grms. being taken) to which known amounts of bismuth and copper and unknown amounts of antimony and silver were added. Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper Bismuth Copper TABLE VI. Amount added. Grm. 0.0050 0*0080 0.0030 0-0035 0-0030 0.0025 0.0036 0.0030 0-0036 0.0025 0.0037 0-0030 0.0037 0.0025 Found. Grm . 0.0051 0.0081 0.0028 0.0036 0.0027 0.0023 0-0025 (Bi found in second 0.0029 0.0034 Solution lost 0.0037 0.0027 0.0037 0.0023 electrolyte) In Table VII are shown the results of analyses of samples of commercial lead bullions by the electrolytic method described above and by Rowell’s method ( J .SOC. Chewz. Ind. 1908 27 102). TABLE VII. Sample number. 1. 2. 3. 4. 5. 6. 7. 8. 9. Electrolytic. Per Cent. 0.104 0.064 0.060 0.042 0.060 0.068 0.068 0-068 0.026 Bismuth. A % Rowell’s method. Per Cent. 0-1 15 0.069 0-069 0.044 (sample contained about 0.068 0.066 0-068 0.068 0.028 (sample contained about 1 per cent.of copper) 2 per cent. of copper 318 JONES THE PRECIPITATION OF SMALL AMOUNTS OF LEAD AS The copper content of these samples was about 0.1 per cent. except Nos. 4 and 9. In the case of No. 4 a single separation of bismuth and copper was sufficient but in the case of No. 9 a double separation was necessary as the bismuth deposited electrolytically after the first precipitation was found to contain traces of copper. SUMMARY.-A new electrolytic method for the separation of small quantities of bismuth and copper from large amounts of lead is described in which the lead is made to displace the less basic metals from solution without any external E.M.F. The principle is applied to the analysis of lead bullion other impurities being either precipitated or precautions taken to prevent their deposition. I wish to thank Dr. Sand for his advice and interest in this work. THE SIR JOHN CASS TECHNICAL INSTITUTE, LONDON E.C.3

ISSN:0003-2654    

DOI:10.1039/AN9305500312

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn.These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members.EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500318

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500321

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn.These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members.EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500323

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500326

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn.These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members.EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry.His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members.EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century.An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list.James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500328

出版商:RSC    

年代:1930

数据来源: RSC

摘要:

OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death. He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools.A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate. HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr.James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65).For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.OBITUARY: JAMES WEST KNIGHTS 133 revived interest in “light ” treatment that Blunt’s work has received due recogni- tion. I t was my good fortune to join Blunt in his analytical work in 1912; this was the beginning of an association which was marked by Blunt’s unfailing willingness to share his knowledge and experience with a man many years his junior, and by a staunch friendship lasting until his death.He had many interests apart from his work; a keen and able field botanist, he was a vice-president of the Caradoc and Severn Valley Field Club, acted as honorary curator of the botanical section of the Shrewsbury Museum, and as a judge of wild flowers at the Shrewsbury Show for half a century. An enthusiastic educationist , he served on the board of management for several schools. A love of the Classics, formed in his Oxford days, was retained throughout his life, and his ability as a Latin and Greek scholar was of no mean order. In his younger days he was a rowing man, being in his College crew, and he also served as a volunteer. Blunt combined exceptional charm of manner with a generous and kindly disposition; a scholar and a gentleman, he did much to establish the traditions and dignity of his profession, and his example is one which a younger generation of Public Analysts may well strive to emulate.HAROLD LOWE. JAMES WEST KNIGHTS. WE have recently had to mourn the loss of several of the oldest members of our Society, and the death of James West Knights, at the age of 75, has now added another to the list. James West Knights was the second son of Mr. James Knights, of St. Ives, Hunts. He was educated at St. Ives Grammar School and at Barton School, Wisbech. ,After leaving school he served an apprenticeship with a local druggist, and then came to London to undergo a course of training in analytical chemistry. His professional career began by his becoming chief analyst to a firm of chemical manufacturers in Flint, and shortly afterwards, at the early age of 25, he was appointed Public Analyst for the Borough and County of Cambridge, the Isle of Ely, the County of Hunts., and the Boroughs of Wisbech and King’s Lynn. These appointments he held until last year, when he retired, after 50 years’ service. For inany years he also acted as gas examiner to the Cambridge Corporation. West Knights joined our Society in 1878, and he contributed several papers to the early volumes of THE ANALYST, including a method for the estimation of nitrates in water (1882, 6, 56) and a description of the familiar form of extraction apparatus which bears his name (1886, 8, 65). For many years past he took no part in the work of the Society, and was therefore personally known to only a few of our members. EDITOR.

ISSN:0003-2654    

DOI:10.1039/AN9305500332

出版商:RSC    

年代:1930

数据来源: RSC