SUBJECT INDEX
INDUSTRIAL AND ENGINEERING CHEM ISTRY
ANALYTICAL EDITION
VOLUME 4— 1932
A B S O R P T IO N Tube, Efficient. E. F. D egcring... 356 Acetic Acid, Glacial, M ethod for Determination of Uranium in Car-
notite Ore. W . W . S cott... 244
Ac i d s:
Acidimetric Todometric M ethod. Determination of Arsenic. R . C.
W iley, J. P. Bewley, and R. Irey... . ... 396 Amino. Interference of Reducing Sugars in Ninhvdrin Reaction
for— and Related Compounds as Applied to Carbohydrates. J.
A. Ambler and J. B. Snider... 37
Damage to Paper b y ... 429
Fatty, Free, Potentiometric Determination of Acid Num ber of Linseed Oil and. B. P. Caldwell and J M attiello... 52 Fatty, Mixed, Some Titer Points of. II. Mixtures of Pure Fatty
Acids. G. W . Jennings... ... 262 Identification Test for Oxalic.. . ...E. R . Caley 445 Potentiometric Titration of A cidity in Oils. R . R . R a ls to n ... 109 See also kind o f acid.
Ai r:
Automatic Apparatus for Determination of Small Concentrations o f Sulfur Dioxide in. III. M . D. T hom as... 253 Determination of Small Amounts o f Methyl Chloride in. F. A.
Patty, II. H. Schrenk, and W . P. Y a n t... 259 Separator, Accurate, Construction of. P. S. R oller... 341 Air Jet M ethod. High-Temperature M odification o f— in Determina
tion of Gum in Gasoline. M . J. Mulligan, W . G. Lovell, and T . A.
B o y d ... 351 Alcohol, Italian Government to Increase Consum ption o f ... 217 Alcohol. See kind o f alcohol.
Aldehydes, Fat. See Fats.
Aliquot and Filter Devices, New, for Analytical Laboratories. T.
M . Shaw... 409 Alkaij, Determination of— in Glass. R. D . Smith and P. C o r b in .. . . 137 Alkalinity. Determination of— in Boiler Waters. F. G. Straub 290 Alloy Steels. See Steels.
Alloys, Electrodeposited, Examination of— and Metals with X -R a ys.
FI. Kersten... 178 Aluminum, Commercial, Direct Gravimetric Determination of Sodium
in. E. R. C aley... ... ... 340 Aluminum, Determination of Sodium in.
I. Chemical Analysis. R. W . Bridges and M . F. L ee... 264 II. Spectrographic Analysis. A. W . P etrey ... ; 265 Ammonia, Liquid— Sodium Process, Determination of Organic Halo
gen by. T. H. Vaughn and J. A. Nieuwland. (Correction)... 22 Anions, Notes on Systematic Qualitative Analysis of. E. W . Flosdorf
and C. M . H enry... ... 434 Aqua Regia and Base Metals. Rate of Corrosion of Iron and Nickel
b y Aqua Regia. C. F. Bonilla... 128 Arsenic, Determination of. Iodom etric Acidim etric M ethod. R . C.
W iley, J. P. Bewley, and R. Ire y ... 396 Ash Content, Functional Relationship between— and Electrical C on
ductance of Cane Sirups and Molasses. Irving Lorge, Louis Sattler,
and F. W . Zerban... 435
Ashing Apparatus for Samples Containing Traces of Iodine. G . M.
K arns... 299 Ashing Plant Materials to Determine T otal Phosphorus, M ethod for.
B W . Howk with E. E . D eT u rk... ... I l l A tom ic Per Cent, Graphical M ethod for Converting— into W eight Per
Cent. Arne Olander... 438 A tom ic Weights, 1932, Table o f ... 390 B A R IU M Hydroxide, Developm ent and Testing of Apparatus for
Carbonate Determination b y Evolution and Absorption in. D e
termination of Hydroxide and Carbonate in Boiler W ater. II.
E . P. Partridge and W . C. Schroeder...>... 274 Baro-Buret. III. Application to Gas D ensity Determinations. H.
S. Booth and K . S. W illson... 427 Base, Titratable, Determination o f Carbon Dioxide and— in Sea W ater.
D . M . Greenberg, E. G. M oberg, and E C. A llen... 309 Bath, High-Precision Constant-Temperature. A . L. Ferguson,
Kenneth Van Lente, and Richard H itchens... 218 Beeswax, Determination o f— in Candles. F. W . Power and E. S
H auber... 389 Benzene, Determination of— in Solvent Mixtures. W . A. C ook and
J. B. Ficklen... 406 Benzidine, Colorimetric Determination of Traces of Manganese and
Chlorine with. R . C. Stratton, J. B. Ficklen, and W . A . Hough.
(Correction, 165)... 2
Beryllium, Analysis of— Minerals. F. G. Hills... 31 Bichromate M ethod, Bi-Ortho-Anisidine as Internal Indicator in— for
Iron. M . E. W eeks... 127 Biological Fluids, Determination of Nitrogen in Organic Compounds
and— b y Im proved Direct Nesslerization M icro-K jeldahl M ethod.
E. S. W est and A. L. B randon... 314 Bi-Ortho-Anisidine as Internal Indicator in Bichromate M ethod for
Iron. M E. W eeks... 127 Bituminous Emulsions, Myers* Demulsification Test for. P. R . Smith. 105 Boric A cid, Electrometric Titration of. L. V. W ilcox ... 38 Boric A cid, M ethod for Direct Titration of— in Determination of
B oron in 'Waters. F. J. F oote... 39
Bo r o n:
Determination o f Fluorine and— in Organic Compounds. D . J.
Pflaum and H. H. W enzke... .••••*... 392 Determination of Minute Amounts o f— in Soils. W . W . S cott and
S. K. W eb b ... 180
450
Determination of— Spectroscopically. J. S. M cIIargue and R . K.
C a lfe e . ... 385 Determination o f— in W aters. M ethod for Direct Titration of Boric
Acid. F. J. F o o te ... 39 Rapid M ethod for Determination of. W . W . Scott and Colleagues. 306 Brass, Rapid M ethod for Determination of Sulfur in Bronze and. J.
O. C oon ey... 33 Brines, Natural, T otal Solids in. George Zinzalian and J. R. "Withrow. 210 Bromide, Removal o f— and Iodide for Detection of Nitrate. M . J.
Murray and A. Wr. A veils... 58 Bromine, Determination of Olefins b y Titration with. J. C. Morrell
and I. M . Levine... 319 Bromine, Estimation of Thallium after Oxidation with. P. E.
B row ning... 417
Bronze ASgis, Restoration of, b y B oston Museum of Fine A rts 37 Bronze, Rapid M ethod for Determ ination of Sulfur in Brass and. J.
0 . C oon ey ... 33 Buret, Gas, for Catalase Apparatus. D. A. P a ck ... 393 Burets, New Specification for. W ithrow M orse ... 263 B utyl A lcohol, Determination of Small Amounts of E thyl and. M . J.
Johnson... 20
C A D M IU M , R apid Determination o f Zinc and Other Impurities in.
H. G. Isbell ... ^... 284 Calcium, Composite Reagent for. G. J. Cox and M , L. D odds 361 Calcium Oxalate, Magnesium in. Quantitative Spectrographic Studies
of Co-Precipitation. I. Stephen Popoff, Louis W aldbauer, and D. C. M cC ann... 43 Calcium, Separation and Determination of Magnesium and— b y 8-
Hydroxyquinoline-Saccharate M ethod. A. C. Shead and R. K.
Valla... 246 Candles, Determination of Beeswax in. F. W . Power and E. S.
Hauber... 389 Carbohydrates, Comm on, Identification of. W . M . Dehn, K . E.
Jackson, and D . A. Ballard... 413 Carbohydrates, Interference o f Reducing Sugars in Ninhydrin Re
action from Amino Acids and Related Com pounds as Applied to.
J. A. Ambler and J. B. Snider... 37
Ca r b o n:
Determination o f— in Fermented Liquors. 0 . L. Osburn and C. H. W erkm an. ... 421 Determination o f— in Organic Compounds. Andrew Chalm ers 1 Microdeterm ination of. Improvements in Nicloux M ethods. P.
L. Kirk and P. A . W illiam s... 403
Ca r b o n Di o x i d e:
Determination o f— in Gas Mixtures. Potentiom etric M ethod. P.
W . W ilson, F. S. Orcutt, and W . H . Peterson... 357 Determination o f— and Titratable Base in Sea W ater. D . M .
Greenberg, E. G. M oberg, and E. C. A llen ... 309 Generator, Poth's, M odification of. E. W . Lowe and W . S. Guth-
m ann... 440 Carbon Disulfide, Iodom etric Determination of. M . P. M a t u s z a k ... 98 Carbon Disulfide, New Micrnanalytical Test for. Nathaniel Tischler. 146 Carbon Monoxide, Determination of Traces of— in Ethylene. H. S.
Booth and M . B; Cam pbell ... 131 Carbon Tetrachloride—Ethylene Dichloride, Binary System. H. D.
Young and O. A. N elson... 67 Carbonate Content of Volumetric Sodium Hydroxide Solutions. J. E.
S. Han and T . Y . C hao... 229 Carbonate, Determination of H ydroxide and— in Boiler Waters.
1. M ethods. E. P. Partridge and W . C. Schroeder... 271 II. Developm ent and Testing of Apparatus for Carbonate Deter
mination oy Evolution and Absorption in Barium Hydroxide.
E. P. Partridge and W . C . Schroeder... . ... 274 III. Plant Tests of Various M ethods for Determining R atios for
Boilcr-W ater Control. L. F. Collins and W. C. Schroeder 278 Carbonization Test, Small-Scale, Use o f— for Determination of Effects
of Inerts on Coking Properties o f Pittsburgh Bed Coal. J. D.
Davis and O. G. Hanson ... 328
Carnotite, Determination of Uranium in— Ore. Glacial A cetic Acid M ethod. W . W . S c o tt... 244 Catalase Apparatus, Gas Buret for. D . A. P a ck ... 393 Cell, Electrolytic, New Type. G. I. Whitlateh and R. D . B lu e 338 Cell, Photovoltaic, as Indicator in Precise Titrom etry. H. M . Par
tridge... 315
Ce l l u l o s e:
Determination of Carbon in Organic Compounds. Andrew Chal
m ers... 1 Measurement of Surface Hardness o f— Derivatives. S. E. Sheppard
and J. J Schm itt... 302 W et M icrocom bustion of Organic Com pounds. W ith Particular
Reference to Derivatives of. Andrew C halm ers.. . . ... 143 Centrifugal M ethod, Rapid, for Pectic Acid Determination. C . R.
Fellers and C. C. R ice ... 268 Cereal, Microdetermination of Protein in— Products. R. J. Robinson
and J. A. Shellenberger... 243 Chemicals, Analytical Reagent, Recom mended Specifications for.
A. C . S. Comm ittee on Analytical Reagents, W . D . Collins, Chair
man 154, 347
Chemistry, Physiological and Organic, Microanalysis of Gases in Relation to. New Research Tools Symposium. Dean Burk and R.
T . M ilner... 3 Chloride, Volumetric Determination of. J. S. Pierce and J. L. Coureey. 64
I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y 451
Chlorides, Direct Determination of. Impurities in W hite Sugars.
V I. J. A. Ambler and S . B ya ll... 379 Chlorine, Colorimetric Determination of Traces of Manganese and—
with Benzidine. R. C . Stratton, J. B. Ficklen, and \V. A. Hough.
(Correction. 165)... 2 Chromium, New Colorimetric Test for. G. C. Spencer... 245 Chromous Sulfate as Reducing Agent in Volumetric Determination of
Iron. W . M . Thornton, Jr., and J. F. Sadusk, Jr... 240 Clarke and Jones M ethod for Determination of Copper. L. C. Hurd
and J. S. Cham bers... 236
Co a l:
Ash, Rem m ey Oxy-Acetylene Test Furnace for Determination of Fusion Point of. F. II. Fish, F. M Taylor, and J. L. Porter 442 Determination of Sulfur in— b y Perchloric Acid Method. G. F.
Smith and A. G. D eem ... ... 227 Pittsburgh Bed, Effect of Inerts on Coking Properties of. Determi
nation b y Small-Scale Carbonization Test. J. D. Davis and O.
G Hanson... 328
Coal-Tar Dyes. See Dyes. -
Coking Properties, Effect of Inerts on— o f Pittsburgh Bed Coal. De
termination b y Small-Scale Carbonization Test. J. D. Davis and O. G. Hanson... 328 Collecting Train for Recovering Traces of Iodine from Ashed Samples.
G. M . K am a... 375
Co l o r:
New German Process for Coloring Living T rees... 78 Removal of— from Solutions to Be Examined b y— Comparisons. P.
L. Hibbard ... 283 Specification o f— on Dyed Fabrics b y SpectroanalyBis. E . M.
Shelton and R . L. Emerson... 248
Co l o r i m e t r i c De t e r m i n a t i o n s:
Free Sulfur in Petroleum Distillates. M . K . Thornton, Jr., and J. E L atta... 441 Manganese and Chlorine with Benzidine. R. C. Stratton, J. B.
Ficklen, nnd W . A. Hough. (Correction, 165)... 2 Methanol. Interference of Dimethyl Ether. B. F. D odg e... 23 M inute Amounts of Boron in Soils. W . W . Scott and S. K . W ebb. 180 M olybdenum . L. H. James... 89 New T est for Chromium. G. C. Spencer... 245 New Vacuum-Furnace Design. K . K . K elley... 391 Reducing Sugars in F ood Products. C . F. Poe and F. G. E d s o n ... 300
Co m b u s t i o n An a l y s e s:
Calculations. Fuel-Gas Analysis for Heating Value and. K . M . Watson and N. II. C eaglske... 70 Determination of Iodine in Soils. J. S. McHargue, D . W . Young.
and W. R R o y ... 214 Furnace, Double-Tube, for. A. B. DeWitfc... 225 M icro- and Sem i-M icro, Metal Tube in. S. Avery, J. Brackenbury,
and W . D. M a cla y... - 238 Condenser, Reflux, and Soxhlet Extractor of Large Capacity. A. E.
Cam eron •»• • • •• • 394
Conductance, Electrical, Functional Relationship between Ash C on
tent and—of Cane Sirups and Molasses. Irving Lorge, Louis Sattler, and F. W . Zerban... 435
Co p p e r: _
Determination of. Observations on Clarke and Jones M ethod. L.
C. Hurd and J. S. Chambers . ... 236 Estimation of Small Amounts of Iron in. Bart Park... 247 Number, Determination of— of Paper. J. D . Piper and C . H.
Fellow's... •... 377 C o-Precipitation, Quantitative Spectrographic Studies of. I. M ag
nesium in Calcium Oxalate. Stephen Popoff, Louis Waldbauer, and
D C. M cC ann... 43
Corrosion Test on Casinghead Gasolines. A. W . T ru sty 33 Cream, Fluid, Phospholipid© Content of. H. F. Wiese, J. H. Nair, and
R. S. F le m in g ... 362 Cuprous Titration, Shaffer and Hartmann Iodometric, Application of.
Determination of Reducing Sugars. G. L. Marsh and M . A. Joelyn 368 Cutter, Precision Sodium. E. B. Hershberg and E . H. Huntress 100 D A I R Y Products, Detection o f Gelatin in. M . B . Jacobs and Leon
Jaffe... 418 Dates, Mineral Com position of. M . M. Cleveland and C. R. Fellers. 267 Demulsification Test, M yers’ , for Bituminous Emulsions. P. R.
Sm ith... 105 Detergent, New, Manufactured b y I. G. Laboratories... 24 Digester, Sulfite, for Research and Instruction. W. L. Beuschlein
and F. II. Conrad...;... :••••.•...
Dimethyl Ether, Interference o f— in Colorimetric Determination of Methanol. B. F. D o d g e . ... . . . ... • • • 23 Diphenylamine, Use o f— or Diphenylbenzidine as Internal Indicators
in Titration of Zinc with Potassium Ferrocyanide. I. M . Kolthoff and E. A. Pearson... 147
Di s t i l l a t i o n: . . . , TT , , ^
Determination o f Sulfur Dioxide. P. F. Nichols and H. M. R e e d .. 79 Determination of Traces of Carbon M onoxide in Ethylene. H. S.
Booth and M . B. Cam pbell... 131
Fractionating Column for Use under Diminished Pressure. M . T.
Bush and A. M . Schwartz... 142 Im proved Trap. E. S. W est... 445 StiHhead, Anti-Foam. C. W . E d d y ... - • . . . t . . . 198 Vacuum. Apparatus for Pressure Control in. L. M . Ellis, J r . . . 318 Drying Agents, Capacity of— for Gas Masks. M . Blumer, C. J.
Engelder, and A. Silverman... ... . ; ... A ' ‘n*’ ‘rr Dumas, M icro-, M ethod for Determination o f Nitrogen. R. T . K.
C ornw ell... 42
Dy e s: . .
C oal-Tar Food, Direct Electrometric Titration of. O. L. Evenson and R. H. N agel... • • • • •• •.•.•...
Determination of Substantivities of. W. P. and E. R. C o h o e .. . . 112 Specification of Color on D yed Fabrics by Spectroanalysis. E. M.
Shelton and R. L. Emerson... -4 8 E A R T H S , Bleaching. A Laboratory Study. P. G. Nutting... 139 E gg White, Determination of T otal Solid M atter and Density of b y
Refractometer H. J Almquist, F. W Lorenz, and B. R. Burmester. 305 E lectricity Thermostatic Control Operated by Ordinary Alternating
Current. J. B. Ramsey and T. A. W atson. . . . . . ... . . 164 Electrodes, Glass, Practical Vacuum -Tube Potentiometer for pH
Measurement with. Fred R osebury... .•.-••• - - • 398 Electrodes, Quinhydrone, Continuous Measurement of pH with. II.
C. C. C oon s... 175 Electrodialysis, Apparatus for. E . J. K in g... 201
El e c t r o l y t i c De t e r m i n a t i o n s:
Cell, A New Type. G. I. Whitlatch and R. D . B lu e... 338 Extraction of Slag and Oxide Inclusions in Iron or Steel. F. W.
S cott... 121 Titration of Boric Acid. L. V. W ilcox... 3S Watch Glasses, Slotted, for Use in. E. R. C aley... 223 Electrometric Titration, Direct, of Certain Coal-Tar Food Dyes. O.
I.. Evenson and R. II. N agel... 151 Enzymes. Note on Measurement of A ctivity of Commercial In-
vertase. II. C. G ore... 367 Ethyl Alcohol, Determination of Isopropyl Alcohol in. F. M . Archi
bald and C. M . Beamer... 18 Ethyl Alcohol, Determination of Small Amounts of B utyl and. M .
J. Johnson... 20 Ethyl Gasoline. See Gasoline.
Ethylene, Determination o f Traces of Carbon M onoxide in. II. S.
Booth and M. B. Cam pbell... 131 Ethylene Dichloride-Carbon Tetrachloride, Binary System. H. D.
Young and O. A. Nelson... 67 Evaporation Tests, Simple, for Mineral Oils. J. J. Shank... 335 Extractor, Laboratory. H. G. Tanner... 397 Extractor. See kind o f extractor.
F A T S:
Aldehydes, New Test for— Resulting from Oxidation of Oils and Fats Helge Schi bated... 204 Determination of Hydroxyl Number of Oils, Waxes, and. W . L.
Roberts and H. A. Schuette... 257 See also Oils.
Feed Cup, Convenient, for Rats. R. W . Pilcher... 327 Fermented Liquors, Determination o f Carbon in. O. L. Osburn and
C. H. W erkm an ... 421 Fertilizer. M ethods for Eliminating Errors in Determination of Potash
in— Mixtures High in Phosphoric Acid. Potash Analyses. C . M.
B ible . ... 234 Filter and Aliquot Devices, New, for Analytical Laboratories. T. M.
Shaw ... 409 Filters. Glass and Quartz, for Handling Gases. P. H. Prausnitz 430 Finishes. See Paint.
_ . . . _ - - ' - ' ' - ‘ 209
417 244 Flowmeters, Multiple^Range. Samuel Y u ste r. ... 224 Fluorine, Determination of Boron and— in Organic Compounds. D.
J. Pflaum and II. H. W enzke... 392 Food Dyes. See Dyes.
Food Products, Determination of Reducing Sugars in. Proposed Colorimetric M ethod. C. F. Poe and F. G. Edson. . ... 300 Foods, Sulfur Content of. M odification of Turbidimeter for D e
termination of Small Quantities of Sulfur. K. S. Kemmerer and P. W . B out well... 423 Fractionation. See Distillation.
Fumigants. Binary System Carbon Tetrachloride-Ethylene D i
chloride. H. D. Young and O. A. Nelson... 67
Fu r n a c e:
Double-Tube Combustion. C. B. D eW itt... 225 Laboratory, for High Temperatures. H. S. Booth and Roland
W ard... 199 Rem m ey Oxy-Acetylene Test, for Coal Ash Fusion Point Determi
nation. F. H. Fish, F. M . Taylor, and J. L. Porter... 442 Vacuum, New Design for. K . K . K elley... 391
G A G E and Manometer, Im proved M cLeod. II. S. B o o th ... 380
Ga s:
Absorption Tube, Efficient. E. F. Degering ... 356 Apparatus for Calibration of Flowmeters. G. W . Sm ith... 244 Buret for Catalase Apparatus. D. A. P a ck ... 393 Density Determinations, Application of Baro-Buret to. III. H.
S. Booth and K. S. W ills o n ... 427 Determination of Carbon Dioxide in— Mixtures. Potentiometrie
Method. P . W. Wilson, F. S. Orcutt, and W . II. Peterson 357 Determination of Total Sulfur in. E. Lieber and R . Rosen. (C or
rection, 181)... 90 Flames, Luminous, Determination of True Temperature and Total
Radiation from. Use of Special Tw o-C olor Optical Pyrometer.
H. C. Ilottel and F P. Broughton... 166 Flowmeters, Multiple-Range. Samuel Yuster... 224 Fuel— Analysis for Heating Value and Combustion Calculations.
K. M . W atson and N. II. Ceaglske... 70 Glass and Quartz Filters for Handling of. P. H. Prausnitz... 430 Hydrocarbon, Analysis of. H. S. Davis and J. P. Daugherty 193 Im proved Unit for Removal of Solid Particles from — Streams. R.
C. Stratton, J. B. Ficklen, and E. W . Krans... ... ... 334 Inert, Use of Metallic Lithium in Analysis of. Determination of
Nitrogen in. J. H Severyns, E. R . Wilkinson, and W . C. Schumb. 371 M cLeod Gage and Manometer, Improved. H. S. B o o th ... 380 Masks, Capacity of Drying Agents for. M . Blumer, C. J. Engelder,
and A. Silverman... 339
Measurement of Slow Flow of D. H. K illeffer. . 97
Microanalysis o f —in Relation to Organic and Physiological Chem
istry. New Research Tools Symposium. Dean Burk and R. T.
M ilner... .••••:... ^ Pressure Pump for Circulating— in Closed System. E. B. K e s te r.. 298 Washing Bottles, Comparative Efficiencies of. S. H alberstadt. . . . 425
Ga s o l i n e: _
Casinghead, Corrosion Test on. A. W . T ru sty... 33 C ost of Manufacture of— Reduced b y Proper Fractionation 235 Determination of Gum in. Higb-Teraperature Modification o f Air
Jet M ethod. M. J. Mulligan. W. G. Lovell, and T . A. B o y d .. . . 351 Ethyl, Determination of Tetraethyl Lead in. E. L. Baldesch wieler. 101 Gelatin, Detection o f— in Dairy Products. M . B. Jacobs and Leon
Jaffe... 418 Generator. Poth’s Carbon Dioxide, Modification of. E W. Lowe and
W. S. Guthm ann ... 440
Germanic Sulfide. Quantitative Conversion of Sulfide to Dioxide by Hydrolysis. J. H. Müller and Abner Eisner... 134 Glass, Determination o f Alkali in. R . D. Smith and P. C orb in 137 Graph. Vapor-Presaure Nomograph. V. W. Wilson and C. K.
B loom quist... 136 Graphic Calculations in Water Analyses. J. K. S ellers. ... 297 Graphical M ethod for Converting A tom ic Per Cent into Weight
Per Cent. Arne öla n d er... 438
452
Graphical Representation of Mineral Components in Water Analyses.
A . A . H irsch .. 405
Gravimetric Determination, Direct, of Sodium in Commercial Alumi
num. E. R. C aley... . . . ... 340 Green Test, Rinnmann’s, for Zinc. A . A . Bencdetti-Pichler .• • • • 336 Gum, Determination of— in Gasoline. High-Temperature M odifica
tion of Air Jet M ethod. M . J. Mulligan, W . G. Lovell, and T . A.
B o y d ... 351
H A L O G E N , Organic, Determination of— b y Liquid Aramonia-Sodium Process. T . H . Vaughn and J. A . Nieuwland. (C orrection.) 22 H oney, Orange, Specific Test for. R . E . L othrop... 395 Humidities, Relative, Determination of— b y Means o f Thermocouples.
J. II. Lanning... 286
Hy d r o c a r b o n s:
Determination of Olefins b y Bromine Titration. J. C. Morrell and 1. M . Levine... 319 Gases, Analysis of. H. S. Davis and J. P. D augherty... 193 Olefin and Arom atic, Approxim ate Determination of. J. C.
Morrell and I. M . Levine... 321
Hy d r o q e n- Io n De t e r m i n a t i o n s:
Continuous Measurement of— with Quinhydrono Electrodes. II.
C. C. C oons... 175 Practical Vacuum -Tube Potentiometer for— with Glass Electrodes.
Fred R oseburv... 398 H ydrophyllic Colloid Content, Determination of— o f Cane Juice.
E . A. 1'icger and A. R . Choppin... 373 Hydroxide. Determination of Carbonate and— in Boiler Waters.
I. Methods. E. P. Partridge and W . C. Schroeder... 271 II. Developm ent and Testing o f Apparatus for Carbonate Deter
mination b y Evolution and Absorption in Barium H ydroxide. E.
P. Partridge and W . C. Schroeder... 274 III. Plant Tests of Various M ethods for Determining R atios for
Boiler-W ater Control. L. F. Collins and W . C. Schroeder 278 Hydroxyl Number, Determination of— of Oils, Fata, and Waxes. W .
L. Roberts and H. A. Schuette... 257 8-Hydroxyquinoline-Saccharate M ethod for Separation and Determ i
nation of Calcium and Magnesium. A. C. Shead and R. K . V a lla . . 246 Ilygroscopio Substances, M ethods for Microanalysia of. D . F.
H aym an ... 256 Hypochlorites, Dissolved Oxygen in Presence of Organic M atter,
Sulfite Wastes, and. E . J. Theriault and P. D . M cN a m ee... 59
IN E R T S , Effect of— on Coking Properties of Pittsburgh Bed Coal.
Determination b y Small-Scale Carbonisation Test. J. D . Davis and O. Q. Hanson... 328 Invertase, Commercial, N ote on Measurement of A ctiv ity of. H . C.
G ore... 367 Iodide, Rem oval of Bromide and— for Detection of Nitrate. M . J.
M urray and A. W . A ven s... 58
Io d i n e:
Ashing Apparatus for Samples Containing Traces of. G. M . Karna. 299 Collecting Train for Recovering Traces o f— from Ashed Samples.
G. M . iCarns. ... 375
Determination of— in Soils. J. S. M cHargue, D . W . Young, and W . R. R o y ... 214
Io d o m e t r i c De t e r m i n a t i o n s:
Acidim etric M ethod. Determination of Arsenic. R . C . W iley, J. P.
Bewley, and R . Irey ... 396 Cuprous Titration, Shaffer and Hartmann, Application of— in Deter
mination of Reducing Sugars. G. L. Marsh and M . A. J o s ly n .. . 368 Determination of Carbon Disulfide. M . P. Matuaxak... 98
Ir o n:
Bi-Ortho-Anisidine as Internal Indicator in Bichrom ate M ethod for.
M . E. W eeks... 127 Chromous Sulfate as Reducing Agent in Volumetric Determination
of. W . M . Thornton, Jr., and J. F. Sadusk, Jr... 240 Estimation of Small Amounts o f— in Copper. Bart P ark... 247 Extraction o f Slag and Oxide Inclusions in Steel or. E lectrolytic
M ethod. F. W . S co tt... 121 Occurrence and Determination of— in Sea W ater. T . G . Thom pson,
R. W . Bremner, and I. M . J a m ie s o n ... 288 Rate of Corrosion of— and Nickel b y Aqua Regia. A qua Regia
and Base Metals. C . F. Bonilla... 128 Isopropyl Alcohol, Determination o f— in E thyl A lcohol. F. M . Archi
bald and C . M . Beam er... 18
J E L L Y -S tren gth Tester, New. C. R . Fellers and J. A . C lague 106
K J E L D A H L Me t h o d:
Distillation Trap, Im proved. E . S. W e st... 445 M icro-, Im proved Direct Nesslerization, for Nitrogen. Determ i
nation in Organic Com pounds and B iological Fluids. E. S. West and A . L. B randon... 314 Selenium in Determination of Nitrogen b y. J. Tennant, H . L.
Harrell, and A . Stull... 410
L E A D Bullion, Silver in. W . R . W agstaff... 51 Leather, Effect o f Temperature on Determination of W ater-Soluble
M atter in. H. B . Merrill and Clifford B enrud... 66 Lignin, Effect of Temperature on Sulfuric A cid M ethod for. C . J.
Peterson, A. W . W alde, and R. M . H ixon ... 216 Lignin, Factors Affecting Quantitative Determination of— b y 72
Per Cent Sulfuric Acid M ethod. G. J. Ritter, R . M . Seborg, and R . L. M itchell... 202 Linseed Oil. See Oil.
Liquid-Leveling D evice, Autom atic, Pressure Control with. J. V.
Vaughen... 346 Liquid Phase, Apparatus for Reactions in— at Elevated Temperatures
and Pressures. H om er Adkins. (Correction, 3 7 9 i... 342 Lithium , M etallic, Use o f— in Analysis of Gases. Determination of
Nitrogen in Inert Gases. J. H. Severyns, E . R . Wilkinson, and W.
C. Schum b... 371 Lubricant, Ground-Joint, Esterification Resin as. T . P. Sager 388 M A G N E S IU M :
In Calcium Oxalate. Quantitative Spectrographic Studies of C o
Precipitation. I. Stephen Popoff, Louis W aldbauer, and D .
C. M cCann. 43
Rapid Determination of Small Amounts o f— in Presence of Phos
phates. W . E. T h ru n .. . .^... .#... 426 Separation and Determ ination of Calcium and— b y 8-H ydroxy-
quinoline-Saccharate M ethod. A . C. Shead and R . K . V a lla .. . 246 M agneto-O ptic M ethod of Analysis as Now Research T ool. New
Research Tools Symposium. Fred Allison... . 9 Manganese, Colorimetrio Determination of Traces of— and Chlorine
with Benzidine. R . C . Stratton, J. B. Ficklen, and W . A . Hough.
(Correction, 165)... 2 Manometer and Gage, Im proved M cL eod. H . S. B o o th ; . . . 380 Manometers for Low' Pressures. New Research T ools Symposium.
Saul D ushm an... 18 Melting Points, Determ ination of— of Special W axes. C. S. Glickman. 304 Mercury, Determ ination o f— in Oil Preparations of Organo-Mercurials.
E. E. M oore and E. F. Shelberg... . ... 226 M etal Tube in M icro- and Sem i-M icrocom bustion Analysis. S. Avery,
J. Brackenbury, and W . D . M a cla y... 238 Me t a l b:
Base, and Aqua Regia. R ate of Corrosion o f Iron and Nickel b y Aqua Refjia. C. F . B on illa ... 128 Determination of— in Organic Com bination. D . L. Tabern and
E. F. Shelberg... _... 401 Elcctrodeposited, Exam ination o f— and Alloys with X -R a y s. H.
Kersten... 178 Methanol, Colorimetric Determ ination of. Interference of Dim ethyl
Ether. B. F. D o d g e ... ... 23 M ethyl Chloride, Determ ination of Small Amounts of— in Air. F . A.
Patty, H. H . Schrenk, and W . P. Y a n t... 259
Mi c r o a n a l y s i s:
Combustion, W et, of Organic Com pounds. W ith Particular R ef
erence to Cellulose Derivatives. Andrew Chalmers... 143 Determination of Carbon. Im provem ents in Nicloux M ethod. P.
L. Kirk and P. A. W illiam s... 403 Determ ination of Copper. Observation on Clarke and Jones
M ethod. L. C. Hurd and J. S. Chambers... ... 236 Determination of Protein in Cereal Products. R . J. R obinson and
J. A. Shellenberger... 243 Dumas M ethod for Determ ination of Nitrogen. R . T . K . C ornw ell. 42 Gases in Relation to Organic and Physiological Chemistry. New
Research Tools Sym posium . Dean Burk and R . T . M ilner 3 Kjeldahl M ethod, Im proved D irect Nesslerization, for Nitrogen.
Determination in Organic Com pounds and Biological Fluids. E.
S. W est and A . L. B randon. . . ... 314 Measurement o f Average Particle Size of Fine Pigments. S. D.
Gehman and T . C. M orris . ... 157
M etal T ube in M icro- and Sem i-M icrocom bustion. S. A very, J.
Brackenbury, and W . D . M a cla y... 238 M ethods for Extrem ely H ygroscopic Substances. D . F. H a y m a n .. 256 M ethods as Tim e and Labor Savers. New Research T ools Sym
posium. E. M . C ham ot... 7 M olecular W eight, New. A. C. Bratton, Jr., and H . L. L o c h t e .. . . 365 Rapid Determination of Small Amounts of Magnesium in Presence
of Phosphates. W . E. T h run... ... .. 426 Semi-, for Determination of Carbon D ioxide and Titratable Base in
Sea W ater. D . M . Greenberg, E . G. M oberg, and E. C. A lle n .. . 309 Test, New, for Carbon Disulfide. Nathaniel T isc h le r. ... 146 M icroburet, M odified. R . B . Dustm an. . ... 345 M icroscope, Measuring, for R ubber Specimens. R . E. L o fto n ... 439 Mineral Components, Graphical Representation of— in W ater A naly
ses. A. A. H irsch... 405 Mineral C om position o f Dates. M . M . Cleveland and C. R . F e lle rs.. 267 Mineral Oils. See Oils.
Molecular W eight M icrom ethod, New. A. C. B ratton, Jr., and H. L.
L och te... 365 M olybdenum , Colorimetric Determ ination of. L . H. Jam es 89 M yers’ Demulsification Test for Bituminous Emulsions. P. R . Sm ith. 105 N E S S L E R IZ A T IO N M ethod, Im proved Direct M icro-K jeldahl—
for Nitrogen. Determ ination in Organic Com pounds and Biological Fluids. E . S. W est and A. L. B randon ... 314
Neutral Oils. See Oils. . .
Nickel, Rate of Corrosion of Iron and— b y A qua Regia. A qu a Regia and Base Metals. C . F. B onilla... ...
Nicloux M ethod, Improvements in. M icrodeterm ination of Carbon.
P. L. Kirk and P. A. W illiams... ... . ... 403 Ninhydrin Reaction, Interference of R educing Sugars in— for Amino
Acids and Related Com pounds as Applied to Carbohydrates. J. A.
Ambler and J. B. Snider... . . .. 37 Nitrate Determinations, Elim ination of Corrections for N itrites in.
Q . H . Nelson, M ax Levine, and J. H . B u ch a n a n . ... 56 Nitrate, R em oval of Brom ide and Iodide for D etection of. M . J.
M urray and A. WT. A v e n s . ... 58 Nitrites, Elimination of Corrections for— in N itrate Determinations.
G. II. Nelson, M ax Levine, and J. H . B u ch a n a n . ... 56 Nitrocellulose-Nitroglycerin Smokeless Powder, Stability Test of.
D R. W iggara and E. S. G oodyear... 73
Ni t r o g e n: . . . . ,
Determination of. Im purities in W hite Sugar. IV . J. A . Ambler and S. B ya ll ... 34 Determination of— in Inert Gases. Use of M etallic Lithium in
Analysis of Gases. J. H. Severyns, E. R . W ilkinson, and W . C.
Schum b... 371
Fixation Plant near Johannesburg... 141
Im proved Direct Nesslerization M icro-K jeldahl Method, for. D e
termination in Organic Com pounds ana B iological Fluids. E . S.
W est and A. L. B randon... 314
M icro-D um as M ethod for Determination of. R . T . K . Cornwell 42 Selenium in Determ ination of— by Kjeldahl M ethod. J. Tennant,
H. L. Harrell, and A. S tu ll... 410 Nitroglycerin-Nitrocelluloee Smokeless Powder, Stability Test of.
D. R. W iggam and E. S. G o o d y e a r . ... 73 Nitrous Oxide, Analysis o f— b y Solubility in W ater. A . L. Chaney
and C. F. Lom bard... . ... 185 Nomograph, Vapor-Pressure. V. W . W ilson and C. R. B lo o m q u is t.. 136 O IL S :
A cidity in, Potentiom etric Titration of. R . R . R a ls to n .. . . 109 Content of Pecans, Determination of. New Sulfuric A cid Digestion
M ethod. II. D . Lewis... •. 296 Determination of H ydroxyl Num ber o f Fats, W axes, and. W . L.
Roberts and H . A . Schuette... 257 E dible, New Test for Fat Aldehydes Resulting from Oxidation of
Fats and. Helge Schibsted... 204
I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y 453
Linseed, Potentiom etric Determination of Acid Number of— and Its Free Fatty Acids. B. P. Caldwell and J. M attiello... 52 Mineral, Simple E vaporation Tests for. J. J. Shank... 335 Neutral, M iacibility o f Sulfonated and Emulsive Capacity o f Sul
fonated. Ralph H a rt... 119
Preparations of Organo-Mercurials, Determination o f M ercury in.
E . E . M oore and E. F. Shelberg... 226 Sulfonated, Determination of Sulfuric Anhydride in. Ralph Hart.. 411 Sulfonated, Emulsive Capacity of. M iscibility of Neutral and.
Ralph H a r t .. . . ... 119 Olefins, Determ ination o f— b y Brom ine Titration. J. C. Morrell and
I. M . Levine... 319 Optical Identification of Strychnine. C. F. Poe and J. E . Sellers 69 Optical M ethods. Use of Special Tw o-C olor Pyrometer in Determi
nation of True Tem perature and T otal Radiation from Luminous Gas FlameB. H . C. H ottel and F. P. B roughton... 166
Or g a n i c Co m p o u n d s:
Com bustion Furnace, Double-Tube, for. C. B. D eW itt... 225 Determination of Carbon in. Andrew Chalmers... = .... 1 Determ ination o f Fluorine and B oron in. D. J. Pflaum and H. II.
W enzke... 392 Determination of Metals in Organic Combination. D . L. Tabern
and E. F. Shelberg... 401 Determination of Nitrogen in Biological Fluids and— b y Improved
Direct Ncsslerization M icro-K jeldahl M ethod. E. S. West and A. L. B randon... 314 L a b w a tory E xtractor. H . G. Tanner. . ... 397 R apid M ethod for Determining Sulfur in. Volumetric Sulfate D e
termination. Andrew Chalmers and G. W . R ig b y... 162 W et MicrocombuBtion of. W ith Particular Reference to Cellulose
Derivatives. Andrew Chalm ers... 143 Organic M atter, Dissolved Oxygen in Presence of Hypochlorites,
Sulfite Wastes, and. E. J. Theriault and P. D. M o N a m e c . ... 59 Organo-Mercurials, Determination of Mercury in Oil Preparations of.
E. E. M oore and E. F. Shelberg... 226 Oxalio A cid, Identification Test fo r ... E. R . Caley 445 Oxy-A cetylene Test Furnace, Remm ey, for Coal Ash Fusion Point
Determination. F. H. Fish, F. M . Taylor, and J. L. P orter... 442 Oxygen, Dissolved, in Presence of Organic Matter, Hypochlorites, and
Sulfite Wastes. E . J. Theriault and P. D . M cN a m ee... 59 P A IN T . Rapid Exposure Tests on Finishes. H . A. Gardner 94 Paint, Turbidim eter in Manufacture of. E. J. Dunn, Jr... 191 Paper, Damage to— b y A cids *... ...
Paper, Determination o f Copper Number of. J. D . Piper and C. II.
Fellows... 377 Pecans, Determination of Oil Content of. New Sulfuric Acid D i
gestion M ethod. R . D . L ew is... 296
Pectic A cid Determination, R apid Centrifugal M ethod for. C. R.
Fellers and C. C. R ic e .• •.• :...: •••••••■•• 268 Perchloric A cid M ethod, Determination of Sulfur in Coal by. G. F.
Smith and A. G. D eem ... ; ... 227 Petroleum Distillates, Detection and Determination of Free Sulfur in.
Colorimetrio M ethod. M . K . Thornton, Jr., and J. E. L atta 441
Ph o s p h a t e s:
Determination of— in Waters. J. E. Farber and G. E. Youngburg. 107 D i- and Tricalcium, Citrate-Insoluble Phosphoric Acid in. K . D .
Jacob, L. F . Rader, Jr., H. L. Marshall, and K . C . B eeson... 25 Rapid Determination of Small Amounts of Magnesium in Presence
of. W. E. T hrun... ... ... • 426 Phospholipide Content o f Fluid Cream. H . F. Wiese, J. H. Nair,
and R. S. Flem ing... 362 Phosphoric A cid, Citrate-Insoluble, in D i- and Tricalcium Phosphates.
K . D . Jacob, L. F. Rader, Jr., H . L. Marshall, and< K. C. B e e so n .. . 25 Phosphoric A cid, M ethods for Eliminating Errors in Determination
o f Potash in Fertilizer Mixtures High in. Potash Analyses. C . M.
B ib le... 234
Phosphorus, Determination of Silica and. Impurities in White
Sugars. V. S. Byall and J. A. A m bler ... 325 Phosphorus, Total, Ashing Plant Materials to Determine. B . W.
H owk with E. E. D oT u rk... ... ... . . . I l l Photographic Emulsions. Autom atic Apparatus for Intermittent
W asking. B. H. C arroll... u * * * V ... i 323 Photographic Records of Vitamin D Line Tests. Henry Stevens and
E. M . Nelson... 200 Photom etric M ethod, Rapid. Determination of Sulfur in Unne. P.
W . Boutwell and E. W. T oepfer... ... • • • • • • • • • • 11' P hotovoltaic Cell as Indicator in Precise Titrom etry. H . M . Par
315 Plant Materials, Ashing— to Determine T otal Phosphorus. B. W .
Howk with E. E . D eT u rk... I l l Plant Tests of Various M ethods for Determining R atios for Boiler-
W ater Control. Determination o f Hydroxide and Carbonate m Boiler W aters. III. L. F. CoLlins and W . C. Schroeder 278 Potash Analyses. M ethods for Eliminating Errore in Determination
o f Potash in Fertilizer Mixtures High in Phosphoric A cid. G. M . B ib le... 234 Potash, W orld Production o f ...; --- . . . . . . . . . 346 Potassium Ferrocyanide, Titration o f Zinc with. Use of Diphenyl-
amine or Diphenylbenzidine as Internal Indicators. I. M . Rolthoff
and E . A . Pearson... • • • *.• * *47 Potentiometer, Practical V acuum -Tube, for pH Measurement witn
Glass Electrodes. Fred R osebury... 398
Po t e n t i o m e t r i c De t e r m i n a t i o n s:
Acid Number o f Linseed Oil and Its Free Fatty A cids. B . P.
Caldwell and J. M a ttiello • • • *••••• ••• • * * •: ® Carbon Dioxide in Gas Mixtures. P. W . W ilson, F. 8. Orcutt, and
W . H. Peterson... . . ... 357 Titration of A cidity in Oils. R . R. R a ls to n . ... • • • 10V Titration, Rapid M ethod for Fixing End Point of. Florence Fen
wick 144
Powder, Nitroglycerin-NiCrocellulose Smokeless, Stability Test of. D . R . Wiggam and E . S. G ood y ear... ■••■•••« • • •... \ Powders, Double-Base, Explosion-Tim e Test of. D . R . Wiggam and
E. S. G oodyear... • • •• • V ' Yr Pressure Control, Apparatus for— in Vacuum Distillations. L. M .
Ellis, Jr . . . 318
Pressure Control with Autom atic Liquid-Leveling D evice. J. V.
Vaughen ... 346
Pressures, E ievated,’Apparatus for Reactions in Liquid Phase at— and Temperatures. Homer Adkins. (Correction, 3 7 9 ). ... 342 Protein Analysis, Van Slyke, Im proved Flask for. Rae P a tto n .. . . 417 Protein, Microdeterm ination of— in Cereal Products. R . J. Robinson
and J. A. Shellenberger... 243
Pump, Pressure, for Circulating Gases in Closed System. E. B.
Kester ... 298 Pyrometer, Special Tw o-C olor Optical, Use of— in Determination of
True Temperature and T otal Radiation from Luminous Gas Flames.
H. C. Hottel and F. P. B roughton... 166
Q U IN H Y D R O N E Electrodes. See Electrodes.
R A D IA T IO N , Total, Determination of True Temperature and— from Luminous Gas Flames. Use of Special Tw o-C olor Optical Pyrom e
ter. H. C. H ottel and F. P. Broughton... 166 Rats, Convenient Feed Cup for. R. W . Pilcher... 327 Reagent Chemicals, Analytical, Recommended Specifications for.
A. C. S. Comm ittee on Analytical Reagents, W . D. Collins, Chair
m an... 154, 347 Reagent, Composite, for Calcium. G. J. Cox and M . L. D od d s 361 Refractometer, Determination of T otal Solid M atter and Density of
E gg W hite b y. H. J. Almquist, F. W . Lorenz, and B. R . Burmester. 305 Rem m ey Oxy-Acetylene Teat Furnace for Coal Ash Fusion Point D e
termination. F. H. Fish, F. M . Taylor, and J. L. Porter... 442 Research Tools, New (For individual papers, see T ools, New Research,
Symposium.)
Resin, Eaterification, as Ground-Joint Lubricant. T . P. Sager 388 Resorcin, Analysis of. D . O. Jones, M . A. Prahl, and J. R. T a y lo r .. . . 84 Rinnmann’s Green Test for Zinc. A. A. Benedetti-Pichlcr... 336 Rubber. Measurement of Average Particle Size of Fine Pigments.
S. D. Gehman and T . C. M orris... 157 Rubber, Measuring M icroscope for Specimens of. R. E. L ofton 439
S A P O N IF IC A T IO N Number, Study of. Nature and Constitution of Shellac. IV . W . F . W hitmore and Harold Weinberger with W. H . Gardner... 48 Sea Water. See Water.
Selenium in Determination of Nitrogen b y Kjeldahl M ethod. J. Ten
nant, H . L. Harrell, and A . Stull... 410 Separator, Accurate Air, Construction of. P. S. R o lle r .. . . . ... 341 Shaking Device, Mechanical. O. W . Chapman and Fred C in o t t o .... 126
Shellac. O. M . Olsen ... 47
Shellac, Nature and Constitution of. IV. Study of Saponification Number. W . F. W hitmore and Harold WeinSerger with W . H.
Gardner... ... 48 Silica, Determination of Phosphorus and. Impurities in W hite
Sugars. V. S. Byall and J. A. A m bler... 325 Silicon, Determination o f— in Steels. R . M . Fow ler... 382 Silver in Lead Bullion. W . R. W agstaff... 51 Slide Rule, Polyphase Duplex, Solving Higher Degree Equilibrium
Equations with. M . J. Polissar... 332
So d i u m:
Determination of— in Aluminum.
I. Chemical Analysis. R . W . Bridges and M . F. L ee... 264 II. Spectrographic Analysis. A. W . Petrey %... 265 Determination of Organic Halogen b y Liquid Ammonia— Process.
T. H . Vaughn and J. A . Nieuwland. ([Correction.)... . ... 22 Direct Gravimetric Determination of— in Commercial Aluminum.
E. R. C aley... 340 Precision Cutter for. E . B. Hershberg and E. H . H untress. ... 100 Sodium H ydroxide, Carbonate Content of Volumetric Solutions of.
J. E. S. Han and T. Y . C hao... 229
So i l s:
Determination of Iodine in. J. S. McHargue, D. W . Y oung, and WT. R . R o y ... 214 Determination o f Minute Amounts of Boron in. W . W . S cott and
S. K . W eb b ... 180 N ew A liquot and Filter Devices for Analytical Laboratories. T.
M . Shaw... 409 Solid Particles, Im proved Unit for Rem oval o f— from Gas Streams.
R . C. Stratton, J. B. Ficklen, and E . W . Kraus... 334 Solutions, Boiling Binary, Composition of Vapors from. D. F. Othmer. 232 Soxhlet Extraction Apparatus, Im proved. D . S. Binningt9n ... 125 Soxhlet Extractor and Reflux Condenser of Large Capacity. A . E.
Cam eron... ... 394
Sp e c t r o o r a p h i c An a l y s e s: *
Determination of Boron. J. S. M cHargue and R . K. C alfee... 385 Determination o f Sodium in Aluminum. II. A. W . P etrey 265 Quantitative, Im proved M ethod of. C. C. Nitchie and G. W.
Standen... 182 Quantitative Studies of Co-Precipitation. I. Magnesium in Cal
cium Oxalate. Stephen Popoff, Louis Wraldbauer, and D . C.
M cC ann... 43 Specification of Color on D yed Fabrics b y. E. M . Shelton and R.
L. E m erson... 248
St e e l s:
Determination o f Silicon in. R . M . F ow ler... . . 382 Extraction of Slag and Oxide Inclusions in Iron or. E lectrolytic
M ethod. F. W . S cott... 121 Special Alloy, Determination of Vanadium in. H . H . W’ lllard and
Philena Y ou n g... 187 StiUhead, Anti-Foam . C. W . E d d y ... I » 8 Stirrer, Bicycle-Chain. S. B. L ippin cott... 93 Stopcock, New Hollow G lass... ; • 335 Stopcocks, Device for Rem oving "F rozen ” Plugs from. H . W . Bailey. 324 Strychnine, Optical Identification of. C. F. Poe and J. E. S ellers.. . . 69
Su o a r8 : .
Determination of Hydrophyllic Colloid Content o f Cane Juice. E.
A . Fieger and A. R. C hoppin... 373 Functional Relationship between Ash Content and Electrical C on
ductance of Cane Sirups and Molasses. Irving Lorge, Louis Sattler, and F. W . Zerban... 435
Reducing. #
Determination of. Application o f Shaffer and Hartmann Iodo- metric Cuprous Titration. G . L. Marsh and M . A . J o s ly n .. . . 368 Determination of— in F ood Products. Proposed Colorimetric
M ethod. C. F. Poe and F. G. E d son ... . ... 300 Interference o f— in Ninhydrin Reaction for Am ino Acids and
Related Compounds as Applied to Carbohydrates. J. A.
Ambler and J. B. Snider... 37 W hite, Impurities in.
IV . Determination of Nitrogen. J. A. Ambler and S. B y a ll.. . . 34 V. Determination of Phosphorus and Silica. S. Byall and J. A.
A m bler... 325
V I. Direct Determination of Chlorides. J. A. Ambler and S.
B ya ll... ... 379 Sulfate Determination, Volumetric. Rapid M ethod for Determining
Sulfur in Organic Compounds. Andrew Chalmers and G. W . Rigby. 162
Su l f i t e:
Digester for Research and Instruction. W . L. Beuschlein and F.
H. C onrad... 415 Waste Liquor, Detection of— in Sea W ater. H . K . Benson and
W . R. B enson... 220 Wastes, Dissolved Oxygen in Presence of Organic M atter, H ypo
chlorites, and. E. J. Theriault and P. D. M cN am ee... 59 Sulfonated Oils. See Oils.
Su l f c k:
Content of Foods. Modification of Turbidim eter for Determination of Small Quantities of— . K . S. Kemmerer and P. W . Bout- w ell... ... 423 Determination of— in Coal by Perchloric A cid M ethod. G. F.
Smith and A. G. D eem ... 227 Determination of— in Urine. Rapid Photom etric M ethod. P. W .
Boutwell and E . W . T oepfer... 117 Free, Detection and Determination o f— in Petroleum Distillates.
Colorimetrio M ethod. M . K. Thornton, Jr., and J. E . L a tt a .. . . 441 Rapid M ethod for Determination of— in Brass and Bronze. J. O.
C oon ey... 33
Rapid M eth od for Determining— in Organic Com pounds. Volu
metric Sulfate Determination. Andrew Chalmers and G. W . R ig b y ... 162 Reducible, Quantitative Estimations of Minute Quantities of. P.
C. Scherer, Jr., and W . W . Sweet... 103 Total, Determination of— in Gases. E. Lieber and R. Rosen.
(Correction, 181)... 90 Sulfur Dioxide, Automatic Apparatus for Determination of Small Con
centrations of— in Air. III. M . D. T h om a s... 253 Sulfur Dioxide, Distillation M ethods for Determination of. P. F.
Nichols and II. M . R eed ... 79
Su l f u r i c Ac i d:
Digestion M ethod, New, in Determination of Oil Content of Pecans.
R . D. Lewis... ... ... 296 Effect o f Temperature on— M ethod for Lignin. C. J. Peterson, A.
W . Walde. and R. M . H ixon ... 216 72 Per Cent, Factors Affecting Quantitative Determination of Lignin
by— M ethod. G. J. Ritter, R. M . Seborg. and R. L. M it c h e ll.. . 202 Sulfunc Anhydride, Determination of— in Sulfonated Oils. Ralph
H art... 411 Symposium. New Research T ools ... 3
T E M P E R A T U R E S :
Effect of— on Determination of W ater-Soluble M atter in Leather.
H. B. Merrill nnd Clifford B enrud... 66 Effect of— on Sulfuric Acid M ethod for Lignin. C. J. Peterson, A.
W . Walde, and 11. M . H ixon ... 216 Elevated, Apparatus for Reactions in Liquid Phase at— and Pres
sures. Homer Adkins. (Correction, 379)... 342 High, Laboratory Furnace for. H. S. Booth and Roland W a r d .. . . 199 High-Precision Constant— Bath. A. L. Ferguson, Kenneth Van
Lente, and Richard H itchens... 218 True, Determination o f— and T otal Radiation from Luminous Gas
Flames. Use of Special Tw o-C olor Optical Pyrometer. II. C.
Hottel and F. P. B roughton... 166 Tetraethyl Lead, Determination of— in E thyl Gasoline. E. L. Balde-
sch wieler... •..: ...
Thallium, Estimation o f— after Oxidation with Bromine. P. E.
Browning... 417 Thermocouples, Determination of Relative Humidities b y Means of.
J. H. Lanning... 286 Thermostat, Inexpensive Low-Temperature. F. O. Lundstrom and
C. W . W hittaker... 294 Thermostatic Control Operated b y Ordinary Alternating Current. J.
B. Ram sey and T. A. W atson ... 164 Titer Points of Mixed Fatty Acids. II. Mixtures of Pure Fatty
Acids. G. W. Jennings... ... ; ... 262 Titrometry, Precise, Photovoltaic Cell as Indicator in. II. M . Par
tridge... 315
To o l s, Ne w Re s e a r c h, Sy m p o s i u m:
M agneto-O ptic M ethod of Analysis as New Research Tool. Fred Allison... 9 Manometers for Low Pressures. Saul D ushm an... 18 Microanalysis of Gases in Relation to Organic and Physiological
Chemistry. Dean Burk and R. T . M ilner... 3
Microanalytical M ethods as Tim e and Labor Savers. E . M . C h am ot... 7 Ultraccntrifuee and Its Field of Research. J. B. N ich ols... 12 Turbidimeter, M odification of— for Determination o f Small Quantities
of Sulfur. Sulfur Content of Foods. K. S. Kemmerer and P. W . B o u t w e ll... ... 423 Turbidimeter in Paint Manufacture. E. J. Dunn,.Jr... 191
U L T R A C E N T R IF U G E and Its Field of Research. New Research Tools Symposium. J. B. N ichols... 12 Uranium, Determination of— in Carnotite Ore. Glacial A cetic Acid
Method. W . W. S c o tt ... 244 Urine, Determination o f Sulfur in. R apid Photom etric M ethod. P.
W . Boutwell and E. W . T oepfer... 117
V A C U U M Furnace, New Design for. K . K . K elley ... 391 Vanadium, Determ ination of— in Specinl A lloy Steels. H . II. W’ illard
and Philena Y ou n g ... 187 Van Slyke Protein Analysis, Im proved Flask for. R ae P a tton ... 417 Vitamin D Line Tests, Photographic R ecords of. Henry Stevens and
E. M . Nelson... 200 Vitamin, Sunshine, M ade in L ab ora tory... 2
W A S H IN G , Interm ittent, Autom atic Apparatus for. B. II. Carroll. 323 W atch Glasses, Slotted, for Use in Electroanalysis. E. R . C a ley 223
Wa t e r:
Analyses, Graphic Calculations in. J. K . Sellers... 297 Analyses, Grnphical Representation of Mineral Components in.
A. A. H irsch... 405 Analysis of Nitrous Oxide b y Solubility in. A . L. Chaney and C.
F. Lom bard. . . ... 185
Boiler, Determination o f Alkalinity in. F. G. S trau b... 290 Boiler, Determination of Hydroxide and Carbonate in.
I. M ethods. E. P. Partridge and W . C. Schroeder... 271 II. D evelopm ent and Testing of Apparatus for Carbonate D e
termination b y E volution and Absorption in Barium Hydroxide.
E. P. Partridge and W . C. Schroeder... . . ... 274 III. Plant Tests of Various M ethods for Determining Ratios for
— Control. L. F. Collins and W . C. S ch roed er.. ... 278 Determination of Boron in. M ethod for Direct Titration o f Boric
A cid. F. J. F o o te ... 39 Determination o f Phosphates in. J. E. Färber and G. E . Young-
b u rg... 107 Sea:
Detection of Sulfite W aste Liquor in. H. K . Benson and W . R.
B enson ... 220
Determination of Carbon Dioxide and Titratable Base in. D . M . Greenberg, E . G. M oberg, and E. C. A llen ... 309 Occurrence and Determination o f Iron in. T. G . Thom pson, R.
W . Bremner, and I. M . Jam ieson... 288 Soluble Matter, Effect of Tem perature on Determ ination of— in
Leather. H. B. Merrill and Clifford B enrud... 66
Wa x e s: t
Determination of H ydroxyl Num ber o f Oils, Fats, and. W . L.
Roberts and H . A. S ch u etto. ... 257 Special, Determination of M elting Points of. C. S. G lickm an 304 See also fctnd o f wax.
W eight Per Cent, Graphical M ethod for C onverting A tom ic Per Cent into. Arne ö la n d er... 438 W ood. Lignin, Factors Affecting Quantitative Determ ination o f— b y
72 Per C ent Sulfuric Acid M ethod. G. J. Ritter, R. M . Seborg, and R. L. M itchell... 202 W ood. New German Process for Coloring Living T rees... 78
X -R A Y S , Examination of Electrodeposited Metals and Alloys with.
H. Kersten... 178
Z iN C : . .
Rapid Determination of— and Other Impurities in Cadmium. H. G.
Isbell... 284 Rinnmann’s Green Test for. A. A. B enedetti-Pichler ... 336 Titration of— with Potassium Ferrocyanide. Use of Diphenyl-
amine or Diphenylbcnzidine as Internal Indicators. I. Mi
Kolthoff and E. A. Pearson... 147
