摘要:

THE ORGAN OF THE Society of Pub& Anadysts, A MONTHLY JOURNAL DEVOTED TO THE ADVANCEMENT OF ANALYTICAL CHEMISTRY. EDITORIAL COMMITTEE : THE PRESIDENT. ALFRED H. ALLEN. EDWARD J. BEVAN. I OTTO HEHNER. BERNARD DYER, D.Sc, SUB-EDITOR : W. J. SYKES, M.D. VOLUME XIX. 1894. LONDON : B A I L L I E R E , T I N D A L L A N D cox, KING WILLIAM STREET, STRAND, W.C.THE ORGAN OF THE Society of Pub& Anadysts, A MONTHLY JOURNAL DEVOTED TO THE ADVANCEMENT OF ANALYTICAL CHEMISTRY. EDITORIAL COMMITTEE : THE PRESIDENT. ALFRED H. ALLEN. EDWARD J. BEVAN. I OTTO HEHNER. BERNARD DYER, D.Sc, SUB-EDITOR : W. J. SYKES, M.D. VOLUME XIX. 1894. LONDON : B A I L L I E R E , T I N D A L L A N D cox, KING WILLIAM STREET, STRAND, W.C.INDEX TO SUBJECTS. A. I Acetic acid and pyroligneous acid synony- mous trade terms .. . . . . . . . . . . Acetic acid, Note on the Valenta test, CRATTAWAP, PEARMAIN 8: Moo% ... Acetic acid, tlirbidity Temperatures of oils and fats with, E. W. T. JONES . . . . . . Acetic acid turbidity test, Results of, on various oils and fats . . . . . . 150, Acetic acid, Discussion on the Valenta test for oils and fats ... . . . . . . Acetanilide and alkaloids, The resemblance in the reactions of, E. SCHAR Acetone in alcohol, Methods for iie det& tion of . . . . . . . . . . . . 267, Acid, Determination of free, in solutions of the salts of the heavy metals, F. HOFF- MA" . . . . . . . . . . . . . . . Acid, Inflience of strength of, in the Leff- mann-Beam procem . . . . . . . . . Adulteration, Two disputed cases of, E. (3.Clayton . . . . . . . . . . . . . . . Adulteration, The need for fuller statistics Of, c. H, CRIBB . . . . . . . . . . . . Albuminoids, The decomposition of, by alkaline hydrates, V. VERDRODI ... Alcohol in vinegar ... Alkaloids in drugs, The vokmetr';; detdr: mination of, CASPABI & DOHME Alkaloids and acetanilide, The resemblance of the reactions of, E. SCH~~B . . . . . . Alkali in alkaline arsenites, The determina- tion of, G. FAVEEL . . . . . . . . . Alum, aluminium hydroxide, and alumi- nium phosphate, Influence of, on the digestibility of bread, BIQELOW & HAMIL- TON . . . . . . . . . . . . . . . Analysis, Some frequently neglected errors in, H. D. RICHMOND . . . . . . . . . Annual meeting . . . . . . . . . . . . Annual address, President's . . . . .. Annual dinner . . . . . . . . . . . . Arsenic, Products of the sublimation of, J. W.RETTGERS . . . . . . . . . . . . Arsenites, Alkaline, The determination of alkali in, U. FAVREL . . . . . . . . . Antimony and tin, Separation of, in alloys, MBNQIN . . . . . . . . . . . . . . . Apparatus for the extraction for analysis of gases dissolved in water, P. HARVEY Atropine and strychnine, Distinctions be- tween by Vitali'e reaction, VITALI .I. ... ... 'AGE 28 1447 151 152 i 52 279 268 70 62 220 273 25 1 13 24 279 42 253 99 25 49 57 47 42 254 121 255 B. Baking-powder not an article of food (legal decision) . . . . . . . . . . . . . . . 48 Balances, Errors due to differences in load of ... . . . . . . . . . 100 Beef-fat in laid, Estimation of, W. F. I(. &OCK . . . .. . . . . . . . . . . 2 Bread, Influence of aluminium salts on the digestion of, BIQELOW &, HAMILTON ,.. 253 Bromine in urine, The determination of, A. NICOLLE . . . . . . . . . . . . 23 Butter, The proximate composition of, H. D. RICHMOND . . . . . . . . . 16 ,, Average amount of water in 16,17 ,, The cryoscopic nrethod in the ex- amination of, GARELLI & CAR- CANO . . . . . . . . . . . . 70 , , Average coinposi tion of, during 1893 . . . . . . . . . . . . 75 ,, Analyses of oid samples . . . . . . '76 ,, On the change in the composition of, by long keeping, ALLEN & MOOR . . . . . . . . . . . . 128 analysis, Recent modifications of the Reichert-Meissl method of. C. BUNTE . . . . . . . . . . . . 188 Butter-fat, Determination of volatile and PAQE ,, insoluble fatty acids in, W.H. BEAL ... 262 C. bined with, in water . . . . . . . . . 124 Calcium, Amount of carbon dioxide oom- Carbonic anhydride in the presence of soluble sulphides, Determination of, A. WOLKO WICZ . . . . . . . . . . . . 18'3 Cheese, Cheshire, C. M. BLADES . . . . . . 131 ,, Remarks on estimation of fat in ... 132 ,, Remarks on proteids of . . . . . . 132 PEARMAIN & MOOR . . . . . . 14.5 ,, Resulta of the analyses of various ... 146 Estimation of fat in, S. BONDZPN- SKI . . . . . . . . . . . . 250 Chromium in chromium-steel, Determina- tion of, SPULLER & KALMAN . . . . . . 116 Chnrchvsrds, Analyses of waters from welle'in close proximity to, J. A. VOELC- EEB . . . . . . . . . . . . . . . 107 Chlorine in saltpetre, The occurrence of, A.HELLICH . . . . . . . . . . . . 221 Chlorine in the presence of bromine and iodine, Detection of, NIELIERS B FAYOLLB 258 , , On the composition of, CHATTAWAY, ,,iv INDEX. PAGE Cider vinegar, (3. S. Cox . . . . . . . . . 89 Cider vinegar, Note on Mr. Cox's paper on, A. H. ALLEN . . . . . . . . . . . . 91 Cloves, Estimation of essential oil in, W. LENZ . . . . . . . . . . . . . . . 250 Cocoa, The quantitative separation and estimation of the alkaloids of, W. E. KUNZE . . . . . . . . . . . . . . . 194 Copper, The determination of impurities in commercial, B. BLOUNT . . . . . . . . . 92 Copper, The determination of foreign metals in, W. HAMPE . . . . . . . . . . . . 93 Copper, lead, tin, and iron, Volumetric estimation of minute quantities of, BUD- DEN & HARDY .. . . . . . . . . . . 169 CORRESPONDENCE :- Between Mr. Allen and Mr. Banniater 231 Letter from Mr. Edward Bevan ... 216 ... 24Q Letter %om Mr. Eddkrd Collens ... 96 Letter from Mr. A. F. de Hailes ... 240 Letter from Messrs. Richmond and B me- Letter from'kr. W: J. K:'Stock* .., 264 42 tion of, E. J. BEPAN . . . . . . . . 85 ley ... 96 Cotton-seed-stearin and maize-oil, F. HART Cotton-seed-oil in lard, Note on the detec- Cream, Observation on the analysis of ... 84 D. Discussion on the vinegar question ... 8, 26 Draft of a Sale of Food and Drugs Act pre- pared by the Council of the Society of Public Analysts . . . . . . . . . . . . 156 E. Errors in aiialysis, Some frequently neg- lected, H. D. RICHMOND . . . . . . . . . 99 Ether, A simple method of purifying com- mercial, M.EKENBEUG . . . . . . . . . 280 Ethereal oils, The analysis of, J. KLIYONT 222 Extracts from tlie evidence given before the Select Committee on Food Products Adulteration of 1894 :- 1. Evidence referring to tlie Work done at Somerset House, and the Rela- tion between Public Analysts and the Referees . . . . . . . . . 208 2. Evidence relating to milk . . . . . . 212 3. 9 , milk standards 225 4. 9 9 decomposed milk ... 228 5. 9 , margarine and butter ... 253 6. 9 9 the amount of w a t e r i n butter ... 263 7. 9 , vinegar ... 283 a. Y, ginger ... 284 9. $ 9 lard . . . . . . 284 10. ,¶ sugar ... 284 11. 9 , standards and F. Fat in cheese, Estimation of, 5. RONDZYN- limits ... 284 SKI . . . . . . . . . . . . . . . . . . 250 Fats and oils, The methods of testing, E.MILLI AU . . . . . . . . . . . . . . . Fats and oils, Turbidit.y temperatures of, with acetic acid, E. W. T. JONES Fats and resins, A new method of analysing, P. C. MCILHINEY . . . . . . Fatty acids, Method for determining the freezing-point of, F. WOLFBAUER ... Freezing-points of fatty acids, Method of determining, F. WOLFBAUER . . . . . . Furfurol as a reagent for sesame-oil in other oils, VILLAVECCHIA & FABRIS . . . . . . Fasel-oil, The influence of, in the Leffmann- Beam process . . . . . . . . . . . . ... ... G. Gases in water analpis, Simple apparatus Ginger, On the detection of exhausted, ALLEN & MOOR . . . . . . On extraneous mineral matter in commercil~I, A. H. ALLEN ... Proportion of aNh yielded by 104 samples of genuine and com- mercial .. . . . . . . . . . . ,, Opinion of Somerset House Au- thoritieson saiiiple of . . . . . . ,, Yield of ash in 58 samples of ground . . . . . . . . . . . . Glass, Comparative tests of different sorts of, with reference to their chemical com- position, F. FOEBSTER . . . . . . . . . for the extraction of, 5. HARVEY ... ,, ,, H. Hops, Estimation oE the tannin-bodies in, M. HAYDUCE . . . . . . . . . . . . Horse-flesh, The chemical recognition of, BRAUTIGAM & EDELMANN . . . . . . I. Indiarubber goods, The analysis of, D. HOLDE . . . . . . LOBRY DE BRUYN & VAN LEEUT ... HENRIQUES ... Indicators €or volumetric analysis . . . . . . Iron, lead, copper, and tin, Colorimetric estimation of minute quantities, BIJDDEN & HARDY . . . . . . . . . . . . .. . Iron, Determination of silicon and alumi- nium in, L. L. DE KONINCX 9 9 The analysis of, ?, The analysis of, R. . . . . . . K. Kapok-oil, It. HENRIQUES ... Kjeldahl-Willfarth and Stock mdihods 0; determining nitrogen, Comparison of, CAVAZZANI & CECCONI . . . . . . . . . Lactic acid, Volatility of . . . . . . . . . L. Lard, Note on the detection of cotton-seed- . . . . . . oil in, E. J. BEVAN PAGE 118 151 141 251 251 47 62 121 124 217 218 219 219 282 139 24 43 109 111 255 169 207 44 224 2414 88INDEX. V PAGE Lard, Qualitative tests for purity of, SAM- - - - UELSON . . . . . . . . . . . . ,, Contribution to the analysis of, (3. HALPEN . . . . . . . . . . . . ,, Estimation of beef-fat in, W. F. I(. STOCK . . . . . . . . . . . . Lead, Separation and volumetric estimation of, LINUBMANN & MOTTEAU .. . . . . Lead, copper, tin, and iron, Colorimetric estimation of minute quantities of, BUD- DEN & HARDY . . . . . . . . . . . . Leffmann-Beam method of fat estimation in milk, RICHMOND & BOSELEY . . . . . . Leffmann-Beam method, Suggestions for the practical use of . . . . . . . . . Legal decision, ‘( Baking-powder not an article of food ” . . . . . . . . . . . M. Mace, Estimation of essential oil of, W. LENZ . . . . . . . . . . . . . . Maize-oil and cotton-seed Rtearin, F. HART Margarine, The addition of phenolphthalein to, F. HART . . . . . . . . . . . . Metals, Pyrological method of estimating minute quantities of . . . . . . . . . Metals in aerated beverages, Hehner’s method of determining . . . . . . . .. Methyltrted spirit in tinctures, spirits, etc., Detection of, A. ASRBY . . . . . . . . . Methyl alcohol in ethyl alcohol, Processes for the detection of by :-MM. RICHE & BARDY, J. T. MILLER . . . . . . . . . A. DUPLS, 0. HEHNER, J. E. REY- P. CAZENEUVE, M. DUCLAUX ... Milk, Average composition of, during 1893 Analysis of separator slime . . . . . . and milk products, Composition of, H. D. RICHMOND . . . . . . . . . Determination of the specific gravity of curdled, M. WEIBTJLL . . . . . . The Leffmann-Beam method of fat estimation in, RICHMOND & BOSE- ,, Observations on the ash of . . . . . . ,, Presence of nitrates in . . . . . . ,, skim-milk, and whey, C. B. COCHRAN ,, Difference between the casein of human and cow’s . . . . . . . . . ,, The loss of total solids on keeping, E.J. BETAN . . . . . . . . . Milk-ecale, An improvement in-Richmond’s, CASSAL 8: GELLANS . . . . . . An adjunct to, H. D. RICHMOND Milk analysis, addition of preservatives to milk intended for analysis ,, ,, Formaldehyde ae a preser- vative for milk in ... ,, ,, New formula for calculation ,, ,, Comparison of the’Adarns and Werner-Schmid pro- cesses of . . . . . . . . . NOLDS . . . . . . . . . . . . ,, ,, ,, ,, LEY . . . . . . . . . . . . . . . ,, in . . . . . . ... 251 282 2 94 169 62 66 48 250 42 69 175 177 265 266 267 268 74 86 73 24 62 83 83 119 206 241 3’7 38 247 247 81 78 PAGE Milk analysis, Examination of crysotile method of . . . . . . 77 ,, ,, Suggestions as to duplicates being forwarded to referees a t once . . . . . . . . . 250 ! I ,, Precautions to be observed in the Adam method of 78 ,, ,, Worthlessness of timeallow- ance in .. . . . . . . . 246 N. Naphtha for mehhylating, Proposed stan- dard for . . . . . . . . . . . . . . . 271 0. Oils, essential, especially in cloves and mace, Estimation of, W. T,ENZ . . . . . . . . . 250 Oils, ethereal (essential), The analysis of, J. KLIMONT . . . . . . . . . . . . . . . 222 Oils and fats, Methods of testing, E. MILLIAU . . . . . . . . . . . . . . . 118 Oils and fats, Turbidity temperature of, with acetic acid, E. W. T. JONES ... 151 OEITTJARY NOTICES :- Dr. Arthur Hill Hassall . . . . . . . . . 97 Dr. C. R. Alder Wright . . . . . . . . . 193 P. Parliamentary Committee on Food Pro- ducts Adulteration of 1894, Extracts from evidence of . . . . .. . . . 208, 225, 259, 283 Peas, The occurrence of poisonous legumi- nous seeds in Indian, J. A. VOELCKER ... 102 Peel, Note on lemon and orange, E. G. CLAYTON . . . . . . . . . . . . . . . 134 Pepper, Composition of, E. VON RAUMER ... 45 Perchloratee, Detection of, in the presence of chlorides, chlorates 8: nitrates, GOOCH & KREIDLER . . . . . . . . . . . 224 Phoaphor tin, Note on the analysis of, F. L. TEED . . . . . . . . . . . . . . . 133 Phosphoric acid, The determination of by the titration of the yellow precipibte with standard alkali . . . . . . . . . 95 Phosphoric acid, On the determination of, H. PEMBELTON . . . . . . . . . . . . 135 Phosphates, Untreated mineral and basic slag, Estimation of citric-soluble phos- Platinum, Permeability of at a red heat to reducing gases .. . . . . . . . . . . 101 Poisonous leguminous seeds in Indian Peas, The occurrence of, J. A. VOELCKEL ... 102 Proximate composition of butter, The, H. D. RICHMOND . . . . . . . . . . . . 16 Pyroligneous acid and acetic acid synony- mous trade terms . . . . . . . . . . . . 28 phoric acid in, P. WAGNER . . . . . . 205 R. Reichert-Meissl method, Recent modifica- Resins and fate, A new method of analysing, tions of, C. BUNTE . . . . . . . . . 188 P. C. MCIILHINEY . . . . . . . . . . . . 141vi INDEX. REVIEWS :- Adulteration [Agricultural fertilizers & feeding stuffs], F. A. CRIPPS-DAY , . . Animal and vegetable fixed oils, butter, waxes : their preparation, properties and uses, C. E. ALDER WRIGHT ... Fertilizers and feeding stuffs, BERNARD DYER, D.Sc.Handbuch ,der Sti’c’kstoff haltigen’Ortho1 condensations Producte, 0. KUBLING Johnston’s elements of agricultural chemistry, C. M. AIKMAN . . . . . . Micro-organisms of fermentation, The, ALPBED JORGENSEN . . . . . . . . . Micro-organisms in water, DR. and MRS. PERCY FRANKLAND . . . . . . . . . Manures and manuring, C. M. AIKMAN Nature’s Hygiene, c. 1’. KIN(32 RTT ... Principles and practices of agricultural analysis, H. W. WILEY . . . . . . S. Saccharin in wine, liqueurs, or beer, E. SPAETE . . . . . . . . . . . . . . . Sale of Food and Drugs Act,, Draft for, pre- pared by the Council of the Society of Saltpetre, The occurrence of chlorine in, A. HELLICH . . . . . . . . . . . . . . . Separation and estimation of antimony, tin and arsenic by sodium peroxide .. . . . . Sesame-oil in other oils, Furfurol as a re- agent for, VILLAVECCIA & FABRIS Slag, basic, and untreated mineral phos- phates, Estimation of oitrate-soluble phosphoric acid in, P. WAGNER . . . . . . Sodium peroxide in analysis, 11 tilization of, 0. KASSNER . . . . . . . . . . . . SOXEHSET HOUSE ANALYSES : Milk . . . . . . . . . . . . . . . Ginger . . . . . . . . . . . . . . . Chicory and coffee . . . . . . . . . Statistics of adulteration, The need for fuller, C. H. CRIBB . . . . . . . . . Steel, Determination of chromium in chromium ... Stock and Kjeldah1:Willfarih m&hods of determining nitrogen, Comparison of, CAVAZZANI & CECCONI . . . . . . . . . Sugar in urine, Examination for minute traces of, A. H. ALLEN ... . . . . . Sugars, Colour-reaction for the detection of, FISCHEB & JENNINGS .. . . . . . . . Sulphides, Determination of carbonic anhy- dride in the presence of soluble, WOLKOWICZ . . . . . . . . . ,, Variation in colour due to ,, Effect of citric or tartaric acid on metallic.. . . . . . . . . . . Sulphide of lead, Effect of sugar on colour Sulphuric acid, Methods of eetimatini Public Analysts . . . . . . . . . . . . ... formation of hydrosulphides ... of precipitate . . . . . . strength of, . . . . . . PAGE 287 143 264 120 72 95 192 71 191 72 42 156 221 281 47 205 280 220 219 221 273 116 224 178 224 189 176 176 176 63 PAGE Sulphuric acid, Table for deducing strength from specific gravity ... 68 ,, Errors in staudardiziirg ... 101 ,, The volumetric estimation of, W. WINDISCH ...138 T. Tannin-bodies of hops and their estimation, M. HAYDUCK . . . . . . . . . . . . 139 Tin, Note on the analysis of phosphor-, F. L. TEED . . . . . . . . . . . . . . . 133 Tin, lead, copper and iron, Colorimetric estimation of minute quarltities of, BUDDEN & HARDY . . . . . . . . . 169 Tin and antimony, Separation of, in alloys, MENGIN . . . . . . . . . . . . . . . 25 4 Tinctures, spirite, etc., The detection of metliylated spirit in, A. ASHBY ... 265 U. Urine, Determination of bromine in, A. NICOLLE . . . . . . . . . . . . ,, Disturbing influence of glycuronic ,, Examination of, for small quantities ,, Method of separating creatinine from ,, New method of using Pavy’s solution in testing . . . . . . . . . . . ,, Occurrence of sugar in normal, views for and against .. . . . . . . . ,, Phenylhydrazine as a test for sugar in . . . . . . . . . . . . . . . ,, Substances interfering withFehling’s acid in sugar estimation in, of sugar, A. H. ALLEN ... . . . . . . test for sugar in . . . . . . . . . 23 184 17s 182 181 178 183 180 V. AWAY, PEARMAIN & MOOR . . . . . . 147 Vinegar, E. COLLENS . . . . . . . . . 33 ), Cider, Gt. 5. COX . . . . . . . . . 89 vinegar, A. a. ALLEN ... Valenta test for acetic acid,Note ~ ~ , C H A T T - ,, Note on Mr. Cox’s paper on cider- 91 ,, Typical analyses of.. . . . . 15 ,, Legal decision as to the strength ‘df 26 ,, Trade definitions of the strength of 27 a standard in ... 257 REINITZER . . . . . . 255 ,, Definitions of . . . . . . 9i.10, 11 Volumetric analysis, Ammonium chloride as $1 Contributions to, B.,) Influence of boiling in $8 Method forcausing pre- 9, Preparation of pure glass vessels in ... 257 cipitates to subside quickly in, P. N. RAIKOW . . . . . . 143 sodium carbonate for 256 Volumetric apparatus, Errors due to ... 100INDEX. vii PAGE Volumetric determination of alkaloids in Volumetric estimation of sulphuric acid, W. drugs, CASPARI & D o r r ~ ~ . . . . . . 24 WINDISCH . . . . . . . . . . . . . . . 138 W. Water analysis,The interpretation of results, F. wa STODDART ... 18, 39 PARE Water analysis, Simple apparatus for the ex- traction of gases dis- solved in water, S. HARVEY 121 Waters from wells near churchyards, Analysis of, J. A. VOELCKEB . . . . . . 107 Weights, Errors due to incorrect . . . . . . 99 Whey, milk nnd skim milk, C.B. COCHRAN 119 INDEX OF AUTHORS' NAMES. A. PAGE ATJ~EX, ALFRED H., Note on Mr. COX'S paper on cider- vinegar ... 91 $ 9 The examination of urine for small quantities of sugar 178 9 , On the extraneoue mineral matter contained in com- mercial ginger , , , 217 AT,TXN & MOOR, On the det,ection of ex- hausted ginger ... 124 On the change in the com- position of butter on long keeping . . . . . . 128 ASHBY, ALFRED, On the detection of tnethylated spirit in tinctures, spirits, etc. . . . . . . . . . . . . . . . . . . 265 *, B. BRAL, W. H., Determination of volatile and ... BEVAN, EDWARD J., The loss in total solids of milk on keeping ... 1 , Note on the detection of cotton-seed.oi1 in lard ... BIQELOW & HAMILTON, The influence of alum, aluminium hydroxide, and alumi- nium phosphate on the digestibility of insoluhle fatty acids in butter-fat bread ...... BLADES, CHARLES M.; Cheshire cheese ... RLOUNT, BERTRAM, The determination of impurities in commercial copper . . , BONDZYNBKI, F., Estimation of fat in cheese . . . . . . . . . . . . BRAUTIQAM & EDPLMANN, The chemical re- cognition of horseflesh BRUYN L. DE & VAN LEPUT,'The anilysis 0; rubber goods . . . . . . . . . . . . BUDDEN & HARDY, Preliminary notea on the colorimetric estimation of minute quantities of lead, tin, copper and iron ... BUNTE, C., The recent modifications of the Reichert-Meid method , , , , . . , , , 252 24<1 88 253 131 92 250 24 109 169 188 a. CABBAL & GERRANS, An improvement in Richmond's milk-scale . . .. . . . . . CABPARI & DORPE, The volumetric deter- CAVAZZANI & CECCONI, Comparison of the Kjeldahl-Willfarth and Stock methods of determining nitrogen cHATTAWAY, PEAE~AIN tz 'iiOOR,"bn ti;; composition of cheese . . . . . . . . . CHATTAWAY, PEARMAIN & MOOR, On the Valenta acetic acid test . . . . . . . . . CLAYTON, E. O., Two disputed cases of adulteration . . . . . . 9 , Note on lemon and orsnge peel . . . . . . COCHRAN, C. B., Milk, skim-milk and whey COLLENS, EDWARD, Vinegar . . , , . . COX, G. S., Cider vinegar ... CRIBB, CECIL H., The need fo; fulie; statistics of adulteration . . . . . . . . . EKENBERQ, M. A,, Simple method of purify- ing commercial ether . . . . . . . . . FAVREL, G., The determination of alkali in alkaline arsenites . . . . . .. . . . . . FISCHEB & JENNINQS, Colour reaction for the detection of sugars . . . . . . . . . FOERSTER, F,, The comparative tests of different sorts of glass with reference to their chemical composition . . . . . . GARELLI & CARCANO, The use of the cryo- scopic method for the examination of butter . . . . . . GOOCH & EREIDLER, Detection of per- chlorates in the presence of chlorides, chlorates and nitrates . . . . . . . . . HALPEN, G., Contributions to the analysis HAXPE, W., Determination'of foreign met& mination of alkaloids in drugs . . . . . . E. F. (3. . . . . . . H. of lard ... ... in commercial copper . . . . . . . . . PAQE 37 24 224 145 147 220 134 11 9 33 89 273 880 42 22 4 282 70 224 282 93viii INDEX. HART, F., The addition of phenolphthalein ,, Cotton-seed stearin in maize-oil HARVEY, SIDNEY, A simple apparatm for the extraction for analysis of the gases dissolved in water... . . . . . . . . . HAYDUCK, M., The tannin-bodies of hope, and their estimation . . . . . . . . . HELLICH, A,, The occurrence of chlorine in HENRIQUES, R., The analysis of" rubber goods . . . . . . . . . HOFFMANN, F., Determination of free acids in solutions of the salts of the heavy metals . . . . . . . . . . . . . . . HOLDE, D., The analysis of rubber goods ... JONES, E. W. T., Turbidity temperatures of . , , to margarine . . . . . . . . . saltpetre . . . . . . . . . ... . . . . . . 9 , Kapok-oil J. K. oils and fats with glacial acetic acid KASSNEB, O., Utilization of sodium peroxide KLIYONT, J., The analysis of ethereal oils KONINCK, L.L. DE, Determination of silicon and aluminium in iron . . . . . . EUNZE, W. E., The quantitative separation and estimation of the alkaloids of cocoa.. , LEHMANN & HEMPEL, Milk, distinction between human and cow's . . . . . . LENZ, W., Eatimation of essential oils, especially in cloves and mace . . . . . . LINDEYANN & MOTTEAU, The separation and volumetric estimation of lead ... MCILHINEY, P. C., New method of analys- ing fats and resins . . . . . . . . . MENQIN, Separation of tin and aluminium in alloys ... MILLIAU, The methdds of &sting"fats and oils . . . . . . . . . . . . . . . . . . NICOLLE, A., Determination of bromine in urine . . . . . . . . . NIELIEBS (VILLIERS) & FAYOLLE, The det& tion of chlorine in the presence of bro- mine and iodine ... . . . . . . . . PRYBERTON, H., JuN., On the determination of phosphoric acid . . . . . . . . . . . . RAIKOW, P. N., An improved volumetric precipitation process . . . . . . . . . RAUMEB, E. VON, Composition of pepper in analysis ... . . . . . . L. M. N. P. R. PAGE 69 4.2 121 139 221 111 70 4!3 151 280 222 207 194 206 250 94 141 254 3 18 23 258 135 143 45 PAGE REINITZEB, B, Contributions to volumetric RETTQEBS, W. J.,'The products of the sublimation of arsenic . . . . . . . . . 47 RICHMOND, H. DROOP, Home frequently- neglected errors in analysis ... 99 milk and milk- s2 An adjunct to t h i 9 , The proximate com- RICHMOND &BOSELEY, The Leffmann-Beam analysis . . . . . . . . . 255 , I The composition of products 73 milk-scale ... 38 positionofbutter 16 method offat-estimation in milk ... 62 S. SAMUELSON, DB, On lard . . . . . . . . 251 SCH&, E., Resemblance between the re- actions of the alkaloids and acetanilide ... 279 SPAETH, E., The detection of saccharin in wines, liqueurs and beer . . . . . . . . . 42 SPULLER & KALMAN, Determination of chromium in chromium-steel .:. ... 116 STOCK, W. F. KEATING, On the estimation of beef-fat in lard . . . . . . . . . . . . 2 STODDART, F. W., Water analysis : the in- terpretation of resiilts . . . . . . . . .I 8, 39 T. TEED, F. L., Note on the analysis of phos- phor-tin . . . . . . . . . . . . . . . 133 V. VERDRODI, V., The decomposition of albu- VILLAVECCHIA & FABBIS, Furfurol as a re- VITALI, D., Distinctions between atropine VOELCKER, J. A., Analysis of waters from wells in close proximity to churchyards ... 107 poisonous leguminous seed in Indian peas ... 102 WAQNEE, P., Estimation of citrate-soluble phosphoric acid in baeic slag and in un- treated mineral phosphates . . . . . . 205 WEIBULL, M., Determination of the specific WINDISCH, W., The volumetric estimation WOLFBAUEB, F., Method for the determina- WOLKOWICZ, A,, Determination of carbonic. anhydride in the presence of soluble minoids by alkaline hydrates . . . . . . 251 agent for sesame-oil in other oils ... 47 and strychnine by Vitali's reaction ... 255 Y, The. occurrence of a W. gravity of curdled milk . . . . . . . . . 28 of sulphuric acid . . . . . . . . . . . . 138 251 tion of the freezing-point of fatty acids ... sulphides . . . . . . . . . . . . . . . 189 BILLINQ AND SONS, PRINTERS, QUILDFORD.

ISSN:0003-2654    

DOI:10.1039/AN89419BA001

出版商:RSC    

年代:1894

数据来源: RSC