摘要:

THE ORGAN OF THE Society of PzkbZic Anabsts, A MONTHLY JOURNAL DEVOTED TO THE ADVANCEMENT OF ANALYTICAL CHEMISTRY. EDITORIU 'COMMITTEE : OTTO HEHNER. ALFRED H. ALLEN. R. H. DAVIES. I BERNARD DYER, €L$e. SUB-EDITOR : W. J. SYKES, M.D. VOLUME XVI. 1891. LONDON: B A I L L I E R E , T I N D A L L A N D C O X , KING WILLIAM STREET, STRAND, W.C.PRINTED BY HAZELL, WATSON, & VINEY, LD., LONDON AND AYLESBURY.INDEX OF SUBJECTS. PAGE A Acetin, Note on the reaction of, with Alco- holic Potash, A. 33. ALLEN & D. HOMFRAY . . . . . . . . . . . . , Further note on . . . . . . . . . Acetone, a New Reagent for, A. SCHWICKER Aconite and its Preparations, Suggestions Albumen in Urine, Estimation of (concluded) T. c. VAN NUYs & R. E. LYONS . . . . . . . . . . . . .. Estimation of by Refractometer, H.0. ELLINGER . . . . . . AIbumen and other Proteids, a New Test for, by J. A. MCWILLIAM . . . . . . . . . Alcohol, the Rose Process of determining, L. GRUNHUr . . . . . . . . . Note on Tabarie’s Process for the indirect determination of, T. P. BLUNT... . . . . . . . . . ROse’R Process for the Estimation of, R. BENEDICT ... . . . . . . Alkali, on the Volumetric Ertimation of minute quantities of, F. ~IYLIUS and F. FORSTER . . . . . . . . . . . . . . . Aluminium, Assay of Commercial, F. REGELSBERGER . , . , . . ,, Iron, and Chromium, New Method for the Separation of? c. MARaEaL and J. W IERNIK . . . . . . . . . Analytical and Microscopical Work, The Analysis, a New Method of, A. BAUMANN Apparatus, New, for the Estimation of Fat Argols, New Method for the Determination Arsenic, Testing Metallic Iron for, 0.SAUTERMEISTER . . . . . . . . . Sensitiveness of various tests for, C. 0. CURTMANN . . . . . . . . . . . . Ash in sugar, determination of, ALBERTI & HEMPEL . . . . . . . . . . . . . . . Astringent acids of wine, estimation of, F. for the Assay of, by A. H. ALLEN ... ,, ,, Separator in, W. THORNER . . . . . . Annual Meeting of the Society . . . . . . in Milk, A. W. STOKES of Bitartarate in, by B. BAILLI . . . . . . . . . . . . . . ,, J E AN... . . . . . . . . . . . . . . . 167 201 191 185 7 197 150 191 221 100 199 40 198 210 174 21 228 192 21 8 237 220 56 B PAGE Barium sulphate, on certain points in the estimation of, F. W. MAR . . . . . . . . . . 154 Barium dioxide, the antllytical use of, E.DONATH . . . . . . . . . . . . . . . 215 Beer, detection of antiseptics in, H. ELION 116 Bees-wax, analysis of, C. MANGOLD . . . . . . 148 ,, detection of rosin in, H. ROTTGER 74 Beet-root molasses, analysis of carbon from the residue of the fermentation of, C. HEYER . . . . . . . . . . . . . . . 179 Hitartarate in argols, new methcd for the determination of, B. BAILLIE . . . . . . 192 Blacking, analysis of, J. PINETTE . . . . . . 190 Borax, turmeric test for, J. 0. JORDAN ... 180 Boric acid, experiments on the estimation of, 0. HEHNER . . . . . . 141 ,, influence, of on peptic diges- tion, 0. HEHNER . . . . . . 126 Bourae de Commerce, Paris, methods in use Bottles, weighing, for oils, P. HEFELMANN ... 179 Bumping, remedy for, E. PIESZEZEK ... 240 Butter, analysis and composition of, W.JOHNSTONE . . . . . . . . . . . . 26 ,, composii4ion of, P. VIETH . . . . . . 1 ,, detection of cocoa-nut fat in, J. MUTER . . . . . . . . . . . . 88 ,, effect on, from feeding on cotton seed and cotton seed meal, N. L. LUPTON . . . . . . . . . . . . 145 ,, preparation for refractometer, F. JEAN . . . . . . . . . . . . . . . 57 ., and other fats, analysis of J. KONIC & F. HART . . . . . . . . . 139 Butter analysis, a modification of the Reichert distillation process, H. LEFPMANN & R. BEAM . . . . . . . . . . . . . . . 153 Butter fat, constitution of, A. H. ALLEN ... 161 ,, estimation by refractometer, H. 0. G. ELLINGER . . . . . 197 ,, critical remarks on analysis and composition of, 0. HEHNER ... 45 a t the laboratory of, F.JEAN . . . . . . 54 - c Carbon in iron and steel, estimation of, L. RURUP . . . . . . . . . . . . . . . 59iV. INDEX. I PAGE Chromium, Aluminium, Iron, new method of separating, C. MARCHAL & J. WIERNIK Cider, a comparison of English & American, G. KMBREY . . . . . . . . . . . . . . . Citric acid as a normal constituent of milk, A. HENKEL . . . . . . >, determination of in wine, A. KLINGER & A. BUJARD ... origin of, in milk, A. SCHEIBE Cocoa, digestibility of albumenoids of, A. STUTZER . . . . . . . . . . . . . . . Coffee, adulteration of, P. E. VAN HAMEL Roos.. . . . . . . . . . . . . . . . . Coloring matter of wine, estimation of, F. JEAN.. . . . . . . . . . . . . . . . . Coucentrstion of solutions as estimated by Copper ore, analysis of grey, W.HAMPE ,. , Copper in preserved foods, J. MAYRHOPER .. Borax turmeric test for, J. 0. JORDAN .,. Effects of frost on water analysis, W. F. On Fleitmann’s test, J. W. GATEHOUSE ... Cytisine, delicate reaction for, J. VAN DE MOER .. . . . . . . . . . . . . ,, refractometer, H. 0. G. ELLINGER ... Correspondence : .- LOWE . . . . . . . . . . . . . . . 198 41 218 210 217 153 1GO 57 196 151 200 180 120 20 57 D Digestion, peptic, effect of boric acid on, 0. HEHNER . . . . . . . . . . . . . . . 126 E Editorials . . . . . . . . . . . . 121, 101 Elderberry juice as an indicator, C. C. HAMILTON ... . . . . . . . . . 79 Election of Officers &‘Council for 1891 ... 25 Esters, saponification of by sodium ethylate A. KOSSEL & M. KRUGER . . . . . . . . . 178 Expechoration, micro-chemical investigation of, F.HUEPPE 77 . . . . . . . . . . . . . F Fat, apparatus for estimating in milk, E. Fat, extraction and fat calculation in milk Fat, determination of in sour milk by the Fat-free paper for use in milk analysis, P. Fat in milk, estimation of by the lactocrite, MOLINARI . . . . . . . . . . . . . . . 209 analysis, P. VIETH . . . . . . . . . . . 203 lactocrite, M. EKENBURG . . . . . . . . . 213 VIETEI . . . . . . . . . . . . . . . 127 L. F. WILSON . . . . . . . . . . . . 135 I PAGE I 1 i Fats, estimation of mixtures of saponifiable and non-saponifiable, M. HONIG & G. SPITZ . . . . . . . . . . . . . . . 238 Fatty acids, determination of rosin in mix- Flours, analysis of old, M. M. BALLAND & . tures with, E. TWITCHELL .. . . . . . . . 169 1 V. PLANCHON . . . . . . . . . . . . 132 G Glycerine in wine, estimation of, F. JEAN ... Glycerine, analysis of crude, F. FILSINGER.. . ,, estimation of by the Benedict- 56 58 Zsigmondy process, C. MANGOLD 160 H Honey, new method of testing, 0. HAENLE Hydrofluoric acid, vessels for containing, Hydrogen dioxide, the analytical use of, E. 79 R. BENEDICT . . . . . . . . . . . 180 DONATH . . . . . 215 CRISMER . . . . . . 219 1 ) preparation of L. I Iodine absorption method, Hubl’s, HOLDE 219 74 Iron and alumina in phosphates, estimation of, R. JONES . . . . . . . . . . . . 39 Iron and alumina in manures, note on Glaser’s process for the estimation of, D. T. MAYER . . . . . . . . . . . . . . . 60 Iron, estimation of manganese in, H. RUBRICIUS .. . . . . . . . . . . . . 180 Iron, metallic, testing for arsenic in, 0. SAUTERMEISTER . . . . . . . . . . . . 218 Iron, aluminium, chromium, new method of separation of, C. MARCHAL & J. WIERNIK . . . . . . . . . . . . . . . 198 Indigo, assay of, F. VOLLER . . . . . . . . . L Lactocrite, estimation of fat in milk with, L. F. WILSON . . . . . . . . . . . . 135 Lard oil, on the iodine number of, by Hubl’s method, R. HAINES . . . . . . . . . 154 Law note, Hotchin v. Hindmarch . . . . . . 119 Lead, determination of in tin plate vessels, J. PINETTE . . . . . . . . . . . . . . . 217INDEX. V. t PAGE oils, A, GRITTNER ... ...I ... ... 155 M Manganese and zinc, new method for separa- tion of, P. JANNASCH & J. F. MCGREGORY ... ... ... ,, volumetric estimation of, L.BLUM ... ... ... ... ,, determination of in iron and steel, H. RUBRICIUS .. . . .. Milk analysis, Werner Schmid method, T. EUSTACE HILL ... ... ,, fat-free paper for use in, P. VIETH ... ... ... ,, fat-extraction and fat-calcula- tion in, P. VIETH .... ... Milk, apparatus for estimation of fat in, E. MOLINARI . . . . . . . . . . . . ,, origin of citric acid in, A. SCHEIBE ... ,, a t what degree of acidity does it curdle on boiling Z W. THORNER ... ,, preservatives, action of, A. W. STOKES, ,, estimation of fat in, A. W. ST~KES ... ,, and milk products, composition of, P. VIETH... ... ... ... ... ,, measuring for quantitative determina- tions, P. VIETH ... ... ... ,, solids, fat extraction from, A. W. STOKES ... .. . ... . . . Molasses, beet-root, anaIyais of the residue of the fermentation of, C.HEYER sugar, and syrup, analysis of, F. W. BABINGTON ... ... ... Mushrooms, adulteration of dried, P. E. ALESSANDBI.. . . . . , . . . . . . ,, 134 140 180 67 127 203 209 217 200 122 228 61 90 92 179 181 240 N Naphthol, volumetric estimation of, MEISSINGER & VORTMANN ... ... ... 75 Nitrates in water, determination of, 8. HAZEN & W. H. CLARK ... ... ... 159 Nitric acid i n nitrates, iodometric estimation of, Q. MCGOWAN ... ... ... ... 156 Nitric acid, estimation of by conversion into ammonia and observation of the deficit of hydrogen, K. ULSCH ... ... ... 134 Nitric-nitrogen, quantitative estimation of, E. FRICKE ... . . . .. . . . . . . . 117 Nitrogen in pure and mixed nitrates, estima- tion of, A. SIJLLWALD ... ..... 40 0 Oil, earthnut, determination of in olive oil, Olive oil, determination of iesame oil in, Oxygen, volumetric estimation of gaseous HOLDE ... ... ... ... ... 1 J. C. TOCHER ... .. ... ... 140 by nitric oxide, L. L. DE KONINCK ... 511 PAGE P Paraffin, estimation of, and myristic acid, F. JEAN .. ... ... ... ... 5 Pepper, on the adultration of white, W. F. ... ... 224 K. STOCK ... ... Pepper, on the grading of, H. TRILLICH 235 Peptones, new method for the analysis of A, DENAEYER .. ... ... 98 ,, rapid valuation of commercial, A. DENAEYER ... ... ... 234 some account of, W. J. SYKES 85 Phenol, volumetric estimation of, MESSINGER & VORTMAXN ... ... ... ... ... 75 Phosphates, eIectrolysis of metallic in acid solution, E. F. SMITH ... ,.. ... 95 Preserved articles of food, tin in, VAN HAMEL Roos ...... ... ... ... ... 19.5 Preserved fwds, copper in, J. MAYRHOFER 200 Preservatives in milk, action of, A. W. STOKES ... ... ... ... .. . 122 President's address, . . . . . . . . . . . . 21 Proteids, a new test fcr, J. A. McWILwahr 150 ... Quinine, tannate of. J. €4. DE VRY ... 99 Reichert distillation process, modification of LEFFMAN & BEAM . . . . . . . . . Refractometer, estimation of concentration of solutions by, H. 0. G. ELLIXGER. .. . . . .. . 1, optical analysis of butter- fat by, H.O.G. ELLINGER 7, estimation of albumen in urine by, H. 0. G.ELLINBER Chemical arithmetic, Part 1, W. DITTMAR Electro-chemical analysis, EDGAR F. SMITH . . .. . . . . . . . . . Micro-organisms in disease, & experiments on their destruction, A.D. GRIFFITHS Untersuchungen aus der Praxis der Gahrungjindustrie, E. C. HANSEN Rice flour, adulteration of, I?. H. VAN HAMEL Roos ... ... ... ... Rosin, determination of in its mixture with fatty acids, E. TWITCHELL . . . .. Rosin oil, detection of in fattv and mineral Reviews of new books :- . . . 158 196 197 197 19 20 20 20 160 169Vi. INDEX. PAGE S Salicylic acid, volunietric estimation of, MEISSINGER & VORTXANX . . . . . . 75 Separator, analytical & microscopical work W. T~ORNER . . . . . . . . . . . . . . . 210 Separatation of titanium, chromium, aluminium, iron, barium, &, phosphoric acid in rock analysis, T. M. CHATARD 129 Sesame oil, detection of in olive oil, J. T. TOCHER . . . . . . . . . . . . . . . 140 Slag, on the adulteration of basic, MORGAN 236 Sodium ethylate, saponification of esters by, KOSSEL & KRUUER .. . . . . . . . . . . 178 Spirits. analysis of, J. BELL . . . . . . . . . 171 Spirituous liquors, ex amination of for secondary constituents, ALLEN & CHATTAWAY.., . . . . . . . . . . . . 102 Starch in cereals, estimations of. LINTNER C% DULL . . . . . . . . . . . . . . . 216 Stearic acid, estimation of, F. JEAN ... 54 Stearin, estid3tion of, F. JEAN . . . . . . 55 Steel, determination of manganese in, H. RUBRICIUS . . . . . . . . . . . . . . . 18 0 Sucrose, invert-sugAr, Sr dextrose or levulose, F. G. WIECHMANN . . . . . . . . . 15, 3 3 Sugar, determiiiation of ash in ALBERTI & HEMPEL . . . . . . . . . . . . . . . 220 Sugar, molasses, & syrup, analysis of, F.W, BABINGTON . . . . . . . . . . . . 181 Sdyhur in pig lead, estimation of, W. HAMPE . . . . . . . . . . . . . . 59 Summer meeting, . . . . . . . . . . . . . . 161 T tion of alcohol, T. P. BLUNT . . . . . . 221 KOVITCH . . . . . . . . . . . . . . . 177 Thermometric scale, a new, P. SALOMON ... 194 SINGER Sr VORTMANN . . . . . . . . . 75 Tabarie’s process for the indirect determina- Teas, examination of China, P. DVOR- Thymol, volumetric estimation of, NEIS- PAGE Tin plate vessels, determination of lead in, Tin in preserved articles of food, VAN HAMEL Toluidine, testing of commercial, F. F. J. PINETTE . . . . . . . . . . . . . . . 217 Roos . . . . . . . . . . . . . . . . . . 195 EAABY . . . . . . . . . . . . . . . 93 V Vinegar, note on malt 0. HEHNER . . .. . 81 further points in the detection of adulteration in, TV, J. SYKES ... 83 ,) W Water analysis, effectrj of frost upon, W. F. LOWE . . . . . . . . . . . . . . . Water, estimation of nitrates in, HAZEN & CLARK . . . . . . . . . . . . . . . Wax, analysis of white, (3. BUCHNER ,. , Weighing bottles for oils, R HEFFELMANN Weighing bottle, a new, a. MANGOLD ,.. Wine axalysis of . F. JEAN . . . . . . . . . Wine. determination of citric acid in, KLIN- GER & BUJARD . . . . . . . . . . . . Wine, new Frenoh law regulating the sale of, . . . . . . . . . . . . . . . . . . I d 0 159 59 179 199 56 210 220 z Zinc, sources of error in the estimation of by Zinc & manganese, qusntitative separation means of ferrocyanide. F. MOLDENHAUER 99 of, JANNASCH Sr XC~REGORY .. . . . . 134 INDEX OF AUTHORS’ NAMES. A PAGE ALBERTI & HEMPEL, Determination of Ash in Sugar ... ... ... ... 220 ALESSANDRI, P. E., Adulteration of Dried Mushrooms ... ... ... ... 240 ALLEN, A. H.. Suggestions for the Assay of Aconite and its Preparations 185 On the constitution of But- ter Fat ... ... 161 29 PAGE ALLEN & CHATTAWAY, The Examination of Spirituous Liquids for secondary consti- tuents ... ... ... ... 102 ALLEN & HOMFRAY, Further Notes on Acetin 201 Note on the action of Acetin with Alcoholic Potash ... ... 167 2 )INDEX. vii. B BABBINGTON, F. W., Analysis of Sugar, No- BAILLI, B., The Determination of Bitartarate BALLAND & PLANCHON, On the Analysis of Old Flours ... ... ... ... BAUMANN, A#, A New Method of Quantitative Analysis .... . ... ... BENEDICT, R., Vessels for containing Hydro- fluoric Acid ... ... Rose’s Processl for the Estima- tion of Alcohol ... 1.. BLUM, L., Volumetric Estimation of Manga- BLUNT, T. P., Note on Tabarie’s Process for the Indirect Determination of Alcohol ... BUCHNER, G., The Analysis of White Wax.. . lasses and Syrup ... ... ... in Argols ... ... ... ... ... BELL, J., Analysis of Spiritps ... ,, nese ... ... ... ... - C CHATARD, T. M., The Separation of Titanium, Chromium, Aluminium, Iron, Barium and Phosphoric Acid in Rock Analysis ... CRISMER, L., Preparation of Hydrogen Per- oxide ... ... ... ... CURTMANN, C. O., The Sensitiveness of various Tests for Arsenic ... ... - D DENAEYER, A., New Method for .the Analysis of Peptones ... ... 7, Rapid Valuation of Conmer- cia1 Peptones ...... DONATH, E., The Analytical Use of Barium Dioxide and Hydrogen Dioxide ... DVORKOVITCH, P., Examination of China Tea - E EKENBURG, M., Determination of Fat in ELION, H., Detection of Antiseptics in Beer ELLINQER, H. 0. G., The Concentration of Solutions as Estimated by their Refractive Power ... Butter-fat ... ... of Albumen in Urine EMBREY, G., A Comparison of English and American Cider, with Suggestions for Estimating the Amount of Added Water Sour Milk by the Lactocrite ... ... Y, The Optical Analysis of 77 The Optical Estimation - F FILSINGER, F., Analysis of Crude Glycerine FRICKER, E., Quantitative Estimation of Nitric-Nitrogen ... .*. ... - Q GATEHOUSE J. W., On Fleitman’s Teat ... QRITTNER, A., Detection of Rosin Oil in Fatty and Mineral Oils I..1.. ... PAGE 181 192 132 174 171 180 100 140 221 59 129 219 237 98 234 215 177 213 116 196 197 197 41 58 117 20 1.5.5 PAGE GR~NHUT, G., The Rike Process for Deter- ... mining Alcohol ... ... 191 H HAENLE? O., New Method for Testing Honey HAINES, R., On the lodine Number of Lard HAMILTON, C. C., Elderberry Juice as an In- HAMPE, W., Estimation of Sulphur in Pig HAZEN & CLARK, Determination of Nitrates HEHNER, O., Experiments on the Estimation Experiments on the Influence of 79 Oil by the Hub1 Method ... ... 154 dicator ... ... ... 79 Lead ... ... ... 59 ,, Analysis of Grey Copper Ore, &c. 151 in Water ... ... ... ... 159 HEFELMANN, R., Weighing Bottles for Oils.. . 179 of Boric Acid ... ... 141 ,, Boric Acid inpeptic Digestion 126 ..Note on Malt Vinegar ... 81 ,, Critical Remarks on the hnaly- sisand Cvmposition ofButter- fat ... ... ... 45 HENKEL, A,, Citric Acid as a Normal Con- stituent of Milk ... ... 218 HEYER, C., Technical Analysis of Charcoal from the Residue of the Fermentation of Beet-root Molasses ... .. 179 HILL, T. E., The Werner SchrnidMethod of Milk Analysis ... ... ... 67 HONIG & SPITZ, On the Estimation of Mix- tures of Saponifiable and Unsaponifiable Fats ... ... ... ... 238 HOLDE, The Determination of Earth-nut Oil in Olive Oil ... ... 240 ,, On Hubl’s Iodine absorption Method 219 HUEPPE, F., Micro-chemical Investigation of Expectoration ... ... ... 77 ... ... - J JANNASCH & MCGREGORY, A New Method for the Quantitative Separation of Manga- nese and Zinc ... ...JEAN, F., Methods in Uil a t the Bourse de Commerce, Paris ... *. . ... JOHNSTONE, W., Further Notes on the Analy- sis and Composition of Butter .. ... JONES, R., Estimation of Iron and Alu- minium in Phosphates ... JORDAN, J. O., Turmeric Test for Borax ... - K KLINGER & BUJARD, Determination of Citric Acid in Wine ... ... ... KONINCK, L. L. de, Volumetric Estimation of Gaseous Oxygen by means of Nitric Oxide KONIG & HART, Analysis of Butter and other Fats ... ... ... ... KOSSEL & KRUGER, The Saponification of Esters by Sodium Ethylate ... ... - 134 54 26 39 180 210 51 139 178 L LEFFMA N & BEAM, Modification of the Rei- chert-Wollny Distillation Process ... 153... vlu INDEX. PAGE LINTNER & D ~ L L , Esbimation of Starch in Cereals ... ... ...LOWE, W., Effects of Frost on Water Analy& LUPTON, N. T., The Effect on Butter from Feeding on Cotton Seed and Cotton Seed Meal ... ... ... ... - M MCaOWAN, G., The Iodometric Estimation of Nitric Acid in Nitrates ... ... MCWILLTAM, J. A., A New Tebt for Albumen and other Yroteids ... ... MANGOLD, G., A New Weighing Bottle . ), Estimationof Glycerine by the Benedict-Zsigmondy Process MAR, F. W., On Certain Points in the Esti- mation of Barium as Gulphate ... MARCHAL & WIERNIK, A New Method *:; Separating Iron, Aluminium and Chro- mium ... .., 8 . . ... MAPER. T. H., Notes on Glaser's Process for the Estimation of Iron and Alurnina in Manures ... ... ... ... MAYRHOFER, J., Copper in Preserved Foods MEISSINGER & VORTIANN, Volumetric Esti- mation of Phenol, Thymol, Naphthol and MOER, J.VAN DE, A Delicate Reaction for MOLINARI, E., Apparatus for the Estimation of Fat in Milk ... ... ... MORGEN, The Adulteration of Basic Slag ... MUTER, J., Detection of Butter adulterated with Cocoa-nut Fat ... ... ... MOLDENHAUER, F., Sources of Error in the Estimation of Zinc by means of Ferro- MYLIU~ dr FORSTER, On the Volumetric Es- timation of minute quantities of Alkali '. .. The Analysis of Bees-Wax ... Salicylic Acid ... ... ... Cytisine .., ... ... ... cyanide ... ... ... ... - N NUYS, VAN, & LYONS, A Method for the Es- timation of Albumen in Urine.,. ... - P PINETTE, J., Determination of Lead in Tin Plate VeseeIs ... ... ,, The Analysis of Blacking .. PIESZEZEK, E., Remedy for Bumping .. - R RAABY, F. F., Testing of Commercial Tolui- dine L..... ... ... REGELSBERGER, F., Assay of Commercial Aluminium ... ... ... ... ROOS, VAN HAMEL, On Tin in Preserved Articles of Food . . . . . . . . . . . . ROTTGER, H., Detection of Rosin in Bees- RUBRICIUS, H., Determination of Manga- nese in Iron and Steel ... ... BURUP, L., Estimation of Carbon in Iron and wax ... ... ... 216 120 145 156 150 199 160 148 154 198 60 200 75 57 209 23 6 a8 99 199 7 81 7 190 240 93 40 195 74 180 steei . -,. ... ... ( 1 . 59 ! I i i I I I I I I I I i I I 1 , I I PAGE s SALOMON, F., A New Thermometric Scale ... SAUTERMEISTER, O., Testing Metallic Iron for Arsenic ... .I. ... ... SCHEIBE, A., Origin of Citric Acid in Milk ... SCHWICEER, A., ANew Re-agent for Acetone SMITH, E. F , Electrolysis of Metallic Phos- phates in A:id Solution ... ... STOCK, W. F. K., On the.Adulteration of STOKES, A. W., Notes on the WernerBchmid Process, withTwo New Pieces ,, On the Action of Miik Preser- vatives ... ... ,, Fat Extraction &om Milk Solids ... ... ... STUTZER, A., On the Digestibility of the Albumenoids of Cocoa ... ... SULLWALD, A., Estim3tion of Nitrogen in Pure and Mixed Nitrates ... ... SYKES, W. J., Some further Points in the De- tection of Adulteration in Vinegar ... White Pepper ... ... ... of Apparatus ... 194 218 217 191 95 224 228 122 92 153 40 83 T THORNER, W. W., The Separator in Analyti- cal and Microscopical Work ... ... 210 does Milk Curdle on Boiling ? ... ... 200 TOCYER, J. T., Detection of Sesame Oil in Olive Oil ... ... ... ... 140 TRILLICH, H., On the Grading of Pepper ... 235 TWITCHELL, E., The Determination of Rosin in its Mixtures with Fatty Acids ... 169 ?, At what Degree of Acidity - U ULSCH, K., On the Estimation of Nitric Acid by Conversion into Ammonia, and Obser- vation of the Deficit of Hydrogen ... 134 v Vieth, P., On the Composition of Butter ... 1 ,, On the Composition of Milk tlnd ,, Measuring Milk for Quantitative ,, Fat-free Paper for Use in Milk ,, Fat Extraction and Fat Calculation ... Milk Products -1. 61 Determiiiations - . . ... 90 Analysis.. .... ... ... 127 VOLLBR, F., The Assay of Indigo ... 74 VRY, J. E. DE, Tannate of Quinine ... 99 ... in Milk Analysis ... 203 ... I_ WIECHMANN, F. G., Study of a Method for the Quantitative Determination of Sucrose, Invert Sugar, and Dextrose or Levulose WILSO;, L. F., The Estimation of Fat in Milk 4 , 17 9, 15, 33 by the Lactocrite ... ... ... 135

ISSN:0003-2654    

DOI:10.1039/AN89116BA001

出版商:RSC    

年代:1891

数据来源: RSC