SUBJECT INDEX
INDUSTRIAL AND ENGINEERING CHEM ISTRY
ANALYTICAL EDITION VOLUME 8— 1936
A B R A S IO N of Floors, Accelerated M ethod for Determining Wear Caused b y. F. D . Snell and K . W . Haeseler... 191 A bsorption, Laboratory Gas— Vessels. W . M . M a rtin ... 395 Acetyl, Scnii-M icrodcterm ination of. E. P. Clark... 487 A cetyl Groups, M icroestim ation of. Adalbert Elek and R . A. IT arte.. 267
Ac i d s:
Borax as Acidiinetrio Standard. F. II. Hurley, Jr... 220 Determination of A cidity in Insulating Oil. R . N. Evans and J. E.
Daveiu>ort... >... 287 Higher F atty, Determ ination of Neutral Equivalents of. R . B.
Sandin, M . Kulka, and D. W . W oolley ... 355 Volatile F atty, Determ ination o f— b y Partition M ethod. O. L. Os-
burn, II. G. W ood, and C. H. W orkm an... 270 A diabatic Calorimeter. See Calorimeter.
Ag i t a t i o n:
New Sealed Stirrer for Laboratory. L . S. P ow ell... 488 New T yp e Laboratory Stirrer. E . B. Hershberg... 313 R apid and Efficient Mixer. D. H . N elson... I l l Simple Laboratory Shaking M achine. J. H. Ilighberger... 227 A lcohol. See n-Butanol.
Alkali Titration. See Titration.
Alkaline Earth and Alkali Groups, System for Qualitative Analysis of.
C . H . Greene. (Correction, 457 )... 346 A lkyd Resins. See Resins.
Aluminous Material, Determ ination of Sodium in. II. V. Churchill, R. W . Bridges, and A. L. M iller... 348 Aluminum, Quantitative Separation and Determination of Zinc and.
F. H. Fish and J. M . Smith, Jr. (Correction. 4 7 7 ) .. ... 349 American Chem ical S ociety Comm ittee. See Oils.
Ammonia Nitrogen. See Nitrogen.
Amm onia-Sodium M ethod. See Sulfur. #
Amm onium Iodide, Separation of Stannic Oxide from Various Oxides b y Ignition with. E. R . Caley and M . G. B u rford... 114 Amylase A ction. See Sugar.
Analysis, Problems in... 410 Analytical Edition, N ote to Authors o f...67, 232 A ntim ony, M icroscopical Qualitative Analysis of Bismuth and. F. T.
Jones and C. W . M a son... 428 (See also Electrolysis.)
Apparatus, New— for Analytical Laboratories. Crucible Support for Desiccators, Graduated Cylinder, and Flask Cover. F. E . Tuttle. . 230 Arsenic, Determ ination o f— in Silver Arsenate. Austin Pomerantz and
W . M. M c N a b b ... 466 Arsenite-Persulfate M ethod. See Steel.
As p h a l t:
Change of Penetration with Temperature of. I. Bencowitz and E. S.
B o e ... 157
Measuring Susceptibility o f— to Temperature Changes. A. Holmes, J. O. Collins, and W. C. C h ild . ... 100 Saponification Numbers of Asphaltic Petroleum Residues. J. H.
Bruun and L. W . C laffey... 255 Authors, N ote to — of Analytical E d ition ... 67, 232 A utom otive Lubricants. See Petroleum Lubricants.
B A L A N C E , A utom atic R ecording. D . S. Binnington and W . F.
G eddes... 76
Balance, M icro-, C ontrol of High Lights in Reading— Swings. P. H .
M .-P . B rin to n .. ... 104 Ball Mill, Inexpensive. L. L. Q uill... 27
Barium, Separation of Strontium, Lead, and— from Calcium and Other Metals. II. H. Willard and E. W . G oodspeed... 414 Barium Chroraate. See Water.
Barium Oxide, R ate of Drying a Desiccator with— and Other Drying Agents. H» S. B ooth and Lucille M cIn ty re... 148 Barium Sulfate. See Sulfur.
Benzene. See Petroleum.
B ichrom ate-Pyridine M ethod. See Mercury.
B iological Material, Microdeterm ination of Fluorine ip. W . D . Arm
s tron g... 384
«.« '-B ip y rid in e Colorim etry. See Colorimetric Determinations.
Bi s m d t h:
Determ ination o f— as Phosphate. W . C. Blasdale and W. C. Parle. 352 M icroscopical Qualitative Analysis of Antim ony and. F. T. Jones
and C . W . M a son ... 428 Separation and Determination o f— with Gallic A cid. L. K ieft and
G . C. C h a n dlee. ... 392 (See also Electrolysis.)
Bituminous Plastics. See Plastics. ^
Blank, Calculating the— in Volum etric Determinations. Bartholow P ark... 32
Bo i l i n g Po i n t:
Laboratory-Scale Ebullition Tube. J. W . B oegei... 476 M icrom ethod for Determ ining— of Liquids at Different Pressures.
E . E. Hays, F . W . Hart, and R . G. G ustavson... 286 Sem i-M icro-Cottrell Apparatus for Determining. M . L. Willard
and D . E . C rabtree... 79 B orax as Acidimétrie Standard. F. H . Hurley, Jr... 220 Bread, Estimation of M ilk Solids in. Charles Hoffman, T . R,.
Schweitzer, and Gaston D a lb y ... 298
Bromine, Determination of Iodine and— in Presence of Each Other.
Ladislaus S pitzer ...
Bubble-Cap Columns. See Distillation.
Buffer Capacity of T om ato Juice. M argarcthe Oakley and J. C.
Krantz, Jr...
Buret, New— for Alkali Titrations. L. S. K eyser...
Buret, N ew— for Potentiom etric Titrations. L. S. K eyser...
Burner, Rodgers Ring, Im proved Design of. G. F. Sm ith...
Butane, Corrosion Test M ethods on Liquid— as M otor Fuel. M . M . H olm ...
n-Butanol, Glass Electrode in— for Determ ining A cidity in Insulating Oil. R . N. Evans and J. E . D avenport...
Butter Fat. See Oils.
C A B L E Insulation. Sec Insulation.
Cadmium, Quantitative Determination of— and Lead in Zinc. H. M . Sullivan ... ... ...
Calcium, Separation of Strontium, Barium, and Lead from — and Other Metals. II. II. Willard and E . W . G oodspeed...
Calorimeter, Adiabatic. W hitney W einrich and Hannibal G a sp a ri...
Carbon M icrodeterm ination. See Microanalyscs.
Carbon D ioxide, Im proved M ethod for Determining R eactivity of Coke in. D. A . Reynolds and J. D . D a v is ...
Carbon Dioxide, M icro-Dum as Generation of. W . S. Id e ...
Carbon Tetrachloride, Determination of Phosgene in Gases from E x
perimental Fires Extinguished with. W . P. Yant, J. C. Olsen, H . H. Storch, J. B. Littlefield, and Leopold Scheflan...
Carbon Tetrachloride, Vaporized, Quantitative Determ ination of C on
centration of. J. C. Olsen, H. F. Smyth, Jr., G. E. Ferguson, and Leopold Scheflan. (Correction, 323)...
Carnotite. See Radium.
C atalytic H ydrogenation. See H ydrocarbons.
Catechol, 4 -N itro— as Titration Indicator. S. R . C ooper and V. J.
T ulane...
Cement, Accelerated Test for Determ ining Resistance of Portland—
to Sulfate Waters. R . W . Stcnzel...
Centrifugal Filtration T ube. D . F. Houston and C. P. S a y lor...
Ceric Amm onium Sulfate. See Silver Titration.
Ceric Sulfate, Volumetric Determ ination of Iodides by. D a vid L ew is.
Charring. See Heater.
Charts. See Nomographs.
Check Valve. See Valve.
Chloride Ion, Titration of— with M ercuric Nitrate Solutions. Irving R oberts...
Chlorinated H ydrocarbons. See Hydrocarbons.
Chloroform , R ecovering— from Used Dithizone Solutions. D . A.
B i d d l e . . . ; ...
Chrom ium in Silicate R ocks. See Silicate R ocks.
Chromous Sulfate, Preparation and Storage of Standard— Solutions.
H. W . Stone and Carrol B eeson...
Co a l:
Analyses and Softening Temperatures o f— Ash. D . J. Jones and E . L. B uller...
Analysis of Bitum inous—and Derived Products. Direct Simulta
neous Microdeterm ination of Carbon, H ydrogen, and Oxygen.
IV . W . R . Kirner... . . . Im proved M ethod for Determining R eactivity of C oke in Carbon
Dioxide. D . A. Reynolds and J. D. D a v is...
Plasticity of. R . E. Brewer and R . G. A tkin son...
C oal-Tar Disinfectants. See Germicide.
C oke. See C oal.
Coke-Oven Gas. See Gases.
Colorimeter, Precision Photoelectric, Design of. R . B . W ithrow , C. L.
Shrewsbury, and II. R . K raybill...
Co l o r i m e t r i c De t e r m i n a t i o n s:
Chromium, Vanadium, and M olybdenum in Silicate R ocks. E. B.
Sandell...
Cyclopentadiene. B. N. A fanasiev...
Determ ination of Iron b y Titanium Titration and b y a .a '-B ip yrid in e Colorim etry. W . D. M cFarlane...
New Procedure for Selenium Determination. K . W . Franke, R obert Burris, and R . S. H u tton ...
Peroxides in Unsaturated Com pounds. C. A . Y oung, R . R . Vogt, and J. A. N ieuw land. ... . Preparation of R aw Sugar Solutions for T urbidity and. T urbidity in Sugar Products. IV . F. W . Zerban and Louis Sattler...
R otenone. H . D . Rogers and J. A. C alam ari...
Silica in Boiler W ater. M . C. Schwartz (C orrection )...
Solutions for C olorim etric Standards. V II. Aqueous Solutions of Salts of Elements 23 to 29. C. T . Kasline with M . G. M ellon. . . . Com bustion Apparatus, Organic— for Highly V olatile and for Inflam
m able Liquids. J. H. Bruun and W. B. M . F aulconer...
Com bustion M ethod for Determining Sulfur in Plain and A lloy Steels.
C. II. Hale, Jr., and W . F. M uehlberg...
Conductance M eter. See M eter.
Conductom etric Determ ination o f Enzym e A ctiv ity . B. N. Sastri and M . Sreenivasaya...
Co p p e r:
Adjustment of pH in Iodom etric Determ ination of. W . R . Crowell, T . E . Hillis, S. C. Rittenberg, and R . F. E ven son ...
492
205 12182 484 299 287 465
382 414 307
33 56
20
260
210 263 302 199
365
99
188
25
57 33 443
214
336 15 124 435 198 168 135 323 463 315 317
458
9
NOVEMBER 15, 1936 ANALYTICAL EDITION 493 Determ ination o f M etallic— in Cuprous O xide-C upric Oxide M ix
tures. L. C. Hurd and A. R . C lark... 380 Electroanalysis of Silver— Alloys. W . L . M iller... ... 431 Iodom etric M ethod for Determining— in Presence of Interfering Ele
ments. H . W . F oote and J. E. V an ce... 119 M icroscopical E stim ation of Cuprous Oxide, Cupric Oxide, and
Copper in M ixtures. S. Zerfosa and M . L. W illard... 303 Preparation of Flattened— Tubing Coils. E . P. and W . L. B a r re tt.. 311 Spectrophotom etric Determ ination of— in Ores and Mattes. J. P.
Mehlig (C orrection )... 257 Standardization of Sodium Thiosulfate Iodom etrically against. L.
O. H ill .“ . . . 200
(See also Electrolysis.) t
C opper C hloride-Perchloric A cid M ethod. See Selenium.
C orrosion T est M ethods on Liquid Butane as M otor Fuel. M . M . H olm ... 299 Cottrell Apparatus. See Boiling Point.
C rucible Support. See Apparatus, New.
C rystalline Materials, Identification of— b y X -R a y D iffraction Pat
terns. J. D . Hanawalt and H. W . R in n ... 244
Cupric Oxide, Cuprous Oxide. See Copper. _
C yelopentadienc, C olor Reaction for Detection of. B . N. A fa n a s ie v .. 15 Cylinder, Graduated. See Apparatus, New.
D E N T A L Gold Alloys. See Gold.
Desiccator, R ate of D rying a— with Barium Oxide and Other D rying Agents. H . S. B ooth and Lucille M cIn ty re... 148 (See also Apparatus, New.)
Dextrose. See Sugar.
Dialyzer, Constant-Volum e. C. B . K rem er... 468 Dialyzer, E lectro-, Simple Inexpensive. F. E. B a r te ll... 247 Dichrom ate, Oxidation-Reduction Indicators for Use with. II. Stu
art Cohen and R . E. Ocsper... 364 D iphenyl Amine Indicator Solution, Preparation of. H . M . S t a t e .. . . 259 D iphenyl Carbazide Indicator in Titration of Chloride Ion w’ith M er
curio Nitrate Solutions. _ Irving R oberts... 365 Disinfectant. See Germicide.
Di s t i l l a t i o n:
Apparatus for Fractional— of Liquefied Gases. Arthur R o s e i 478 B attery-T ype Stand Assembly for— Equipm ent. R . L. M o b le y .. . . 281 C onstruction of Glass Helices for Packing Fractionating Columns.
W . W . Stew art... 451 Fractional, Condenser System for. E . A. Means and E. L. Newman 231 Glnss Head for Laboratory W ater Still. P. F. Sharp and E. B.
Struble ... 316 Ivjeldahl. «See Nitrogen.
Laboratory B ubble-C ap Columns of Glass. J. H . B ruun... 224 M icro— Apparatus. L. C. C raig... 219 Tube for Moisture Measurement b y. H. B. A lexander... 314 Dithizone as Reagent for Dissolving and Determining Spray Residue
Lead. W. E . W hite... 231 D ithizone, Recovering Chloroform from Used— Solutions. D . A.
B iddle... 99 D rying. See Desiccator and Heater.
Dumas M ethod. «See M icroanalyses. ^ . . .
Dusts, X -R a y Diffraction M ethod for Quantitative Analysis of— in Mines. G. L. Clark and D . H . R eyn olds... 36
E G G S :
Location of Antienzym e in— W hite. J. S. Hughes, II. M . Scott, and J. A ntelyes... ...j...j 310 Microdeterm ination of A m m onia Nitrogen in. S. L. Bandemer and
P. J. Schaible '... • • ■ 201 Sampling and Analysis of. W . S. Guthmann and W . L. Terre. (C or
rection, 4 5 9 ) ... ..._... 377 Electroanalysis of Silver-Copper Alloys. W . L. M iller... 431 E lectrode. See Glnss Electrode.
Electrodialyzer. «See Dialyzer. # < t
Electrolysis, “ Internal,” Analysis by. Determ ination of Bismuth and Copper in Lead Alloys Containing Antim ony and T in. B. L . Clarke, L. A. W ooten, and C. L. L uke... 411 E lectron-Tube C onductance M eter. See M eter. . E nzym e A ctivity, Conductom etric Determ ination of. B. N. Sastri and
M . Srecnivasaya... 458 Eosin. «See Sulfates.
E vaporation. See Heater.
E vaporation of Solvents. See Solvents.
E xtraction, Approach towards the Lim it in Process of. C. W . Griffin and M argaretha von S aaf... 358
Ex t r a c t o r:
Efficient— for Laboratory. F. C. O ppen... 110 Fat— for Feeds. C. E. W eakley, Jr... . ... • • • • • 388 M etal— for Laboratory. J. M , Lemon, F. P. Griffiths, and M . E.
S tansby... 462
F A T S . «See Oils.
F a tty Acids. See Acids. r
Feeds, Fat-E xtraction Apparatus for. C. E . W eakley, Jr. . ... . . . 388 Ferrocyanide Ion, Determ ination o f— by Luteocobaltam mine Chloride.
W . A. Hynes, M . G. M alko, and L. K . Y anow ski... 356
Ferrotungsten. «See Steel. , .
Fiber, Prevention of Foam ing in Crude— Determinations. H . vv. Ger- ritz ..._... 75 Films, Measuring Thickness of— of Thin, Flowing Liquids. H . H.
Beck and K . G. W eck el... 258 Filtration, Centrifugal— Tube. D . F. H ouston and C. P. S aylor... 302
Fir. See W ood. .
Fire-Extinguisher Liquid. See Carbon Tetrachloride.
Flame Spectra. See Spectrographic Determinations.
Flask C over. See Apparatus, New.
Floors, Abrasion of. See Abrasion.
Fluorescence. See Spectrographic Analysis.
Fl u o r i n e: # , .
Im proved Apparatus for Isolation of— b y W illard and W inter M ethod. W. K . Gilkey, H . L. R ohs, and H. V . Hansen... 150 M ethod for Determ ining Fluoride in Spray Residue on F ood Prod
ucts. W . M . Hoskins and C . A . Ferris... 6 M icrodeterm ination of. W . D . A rm strong... 384 N ephelometric Determ ination of. R . E . Stevens. . . ; ... 248 F ood, M ethod for Determ ining Fluoride in Spray Residue on— Prod
ucts. W . M . Hoskins and C . A. Ferris... 6
Form ic Acid, Determ ination o f— in Pyroligneous Liquors. H. D.
W eihe and P. B . J acobs... 44 Fractionation. See Distillation.
Fuel, M otor. See Petroleum.
Furfural, 5-M ethyl-, Quantitative Determ ination of. II. A. Iddles and K . S. F rench... 283
G A L L IC A cid, Separation and Determ ination of Bismuth with. L.
K ieft and G. C. Chandlee... 392
Ga s e s:
A utom atic Leveling D evice for— Collection b y Dow nw ard Displace
ment of M ercury. L . D . W ilson... 488 C oke-Oven, D eterm ination of N itric Oxide in. J. A. Shaw. (C or
rection, 281)... 162 Laboratory— Absorption Vessels. W . M . M a rtin ... 395 liq u efied , Apparatus for Fractional Distillation of. Arthur Ito3e. . . 478 Sodium Hyposulfite Solutions for Absorption of Oxygen in— A naly
ses. D oroth y O uiggle... 363 Gasoline. See Petroleum.
Geilmann R eaction. See Rhenium.
Germicide, Limitations of B. typhosus Phenol Coefficient as Measure of Bactericidal Value of C oal-Tar Disinfectants. Emil Klarmann and V. A. S hternov... i ... 369
Gl a s s:
Electrodes of— in n-B utanol for Determ ining A cidity in Insulating Oil. R . N. Evans and J. E . D a v en p ort... 287 Laboratory B ubble-C ap Columns of. J. II. B ruun... 224 M anm ulator for Blowing. Vines Collier, Jr... 208 One-Piece— M icro-K jeldahl Distillation Apparatus. P. L. K i r k .. . . 223 Glucosides. «Sec Salicin.
Glycerol, Determ ination of W ater in. C. P . Spaeth and G . F . H utchi
son ... 29 G old, Determ ination of— in Dental— A lloys. J. L. M a yn ard... 368
Grapefruit. Solubility of Naringin in W ater. G. N . P u lley... 360 G ravim etric Determ ination of M ercury. A ccurate Separation of Pre
cipitated M ercuric Sulfide and Sulfur in. E . R . C aley and M . G.
B u rford... 43 Gravim etric D eterm ination of Selenium in A lloy Steel. Louis Silver
m an... 132 Guanidines. «See R ubber.
H E A T E R , Overhead— for R apid E vaporation, Drying, and Charring.
L. F. Nims and M . K . I lo r w itt... 275 Helices. «See Distillation.
Hevea Latex. «See Rubber.
Hcxanitrato A m m onium Cerate as Proposed Reference Standard in Oxidimetry. G. F. Smith, V. R . Sullivan, and Gerald Frank... 449 Hill M ethod. See Solubility. #
Humates, D eterm ination of Iron in. N. A . Clark and D . H . S ie iin g .. . 256 Ilydriodic A cid, Concentrated, D etection and Separation o f Difficultly
Soluble C om pounds b y. E . R . Caley and M . G. B u rford ... 63
Hy d r o c a r b o n s:
Determ ination of Gaseous Olefins or H ydrogen b y C atalytic H ydro
genation. W . A. M cM illan, H. A. Cole, and A. V. R itch ie... 105 Determ ination of Vapors of Chlorinated— in Air. II. F. Sm yth, J r.. 379 Organic Com bustion Apparatus for H ighly V olatile and for Inflam
mable Liquids. J. H . Bruun and W . B . M . F aulconer... 315 (See also kind o f hydrocarbon and Petroleum .)
H ydrogen, Determ ination of Gaseous Olefins or— b y C atalytic H ydro
genation. W . A . M cM illan, II. A. Cole, and A. V. R itch ie... 105 H ydrogen Microdeterm ination. «Sec Microanalyses.
H ydrogen-Ion Concentration, A djustm ent o f— in Iodom etric D eter
mination of Copper. W. R . Crowell, T . E . Hillis, S. C . R ittenberg,
and R . F. E venson... 9
H ydrogen-Ion Concentration. Simplification of Isohydric Indicator M ethod. Sverre S tene... _... 398 H ydroxyl Groups, Determ ination o f— in Organic Com pounds. M .
Freed and A. M . W yn n e... 278 H ygroscopic Substances, D rying and Analysis of. Organic M icro
analysis. II. R . T . Milner and M . S. Sherm an... 427
IC E Cream, E stim ation of Oleomargarine in. T . H . W hitehead and J. B. D u nson... 203
In d i c a t o r s:
Future D evelopm ent of. I. M . K olth off... 237 Oxidation-R eduction— for Use w'ith Dichrom ate. II. Stuart C o
hen with It. E . Oesper... 364 Simplification of Isohydric— M ethod. Sverre Stene... 398 («See also kind o f indicator.)
Indium , R apid M ethod for Volum etric Determ ination of. H . B.
Hope, M adeline Ross, and J. F. S kelly... 51 Industrial and Engineering Chem istry. See Analytical Edition.
Inks, Iron Gallate, Liquid and P ow der... 19 Inorganic Analysis, Organic Reagents in. F. F eigl... 401 Insecticidal Dusts. Particle Size of. L. D . Goodhue and C. M . S m it h .. 469 Insecticide. M ethod for Determ ining Fluoride in Spray Residue on
Food Products. W . M . Hoskins and C. A . Ferris... 6 Insulating Oil. «See Petroleum .
Insulating Wires, Spindle for. J. M . S tu rteva n t. ... 341 Insulation for Cables. Determ ination of V iscosity of Small Samples of
Oil from Oil-Im pregnated Paper. H . F. Schneider, Jr., and T . A.
M cC onn ell... 28 Iodides, Volum etric Determ ination o f— b y Ceric Sulfate. Application
of Indicator o-Phenanthroline Ferrous Ion. D avid Lew is... 199 Iodine, Determ ination o f— and Bromine in Presence of Each Other.
Ladislaus S pitzer... 465 Iodine, Nomograph for— Value of Tung Oil. C. S. W an and K . I I o . . . 282 Iodohydroxyquinoline Sulfonic A cid. See Iron.
Io d o m e t r i c De t e r m i n a t i o n s:
A djustm ent of pH in— of C opper. W . It. Crowell, T . E . Hillis, S. C.
Rittenberg, and R . F. E ven son ... 9 C opper in Presence of Interfering Elements. H . W . F oote and J. E.
V an ce...; ...r... #. . . 119 Sem i-M icrom ethod for— of M altose in Studies of Amylase A ction.
M . L. Caldwell, S. E . D oebbeling, and S. H . M anian... 181 Standardization o f Sodium Thiosulfate against Copper. L . O. H ill.. 200
Ir o n: _ , #
Determ ination of— b y Titanium Titration and b y ar,a'-Bipyridine Colorim etry. W . D . M cF arlane... 124
INDUSTRIAL AND ENGINEERING CHEMISTRY YOL. 8, NO. 6 Determ ination of— in Humates b y Iodohydroxyquinoline Sulfonic
A cid. N . A . Clark and D . H . Sieling... 256 D eterm ination of— in Sea W ater. N. W . Rakestraw, H. E.
M ahncke, and E. F. B each ... 136 P hotom etric Determ ination of— in Used Engine Oils. A . R . R es-
corla, E. M . Fry. and F. L. Carnahan... 242 Iron Gailate Inks. See Inks.
Isohydric Indicator. See Indicators.
K E R O S E N E . See Petroleum.
K jeldahl M ethod. See Nitrogen.
L A N T H A N U M , Determ ination of— , Yttrium , and Ytterbium from Spark in Flame Spectra. O. S. Plantinga and C. J. R od d en ... 232 Latex. See Rubber.
Le a d: .
Errors in Microweighing Due to Use of— Shot in Tares. R . J. W il
liam s • • • • ... 229
Quantitative Determ ination of Cadmium and— in Zinc. H. M . Sullivan... 382 Separation of Strontium. Barium, and— from Calcium and Other
Metals. H . H. W illard and E . W . G oodspeed... 414 Spray Residue, Dithizone as Reagent for Dissolving and Determin
ing. W . E . W h ite ... 231 Lead Alloys. See Electrolysis.
Lead Nitrate, Determ ination of Sulfate b y Titration with— Using E o
sin as Indicator. J. E. R ic ci... 130 Levulose. See Sugar.
Lignin. See W ood.
Liquid Films. See Films.
Liquids, Precision Pycnom eter for. S. T . Yuster and L. H. R eyerson .. 61 Liquids, Viscous, Surface-Tension Measurements of. A. H. Pfund and
E . W . Greenfield... 81 Lubricants. See Petroleum.
Luteocobaltam m ine Chloride, Determ ination of Ferrocyanide Ion by.
W. A . Hynes, M . G. M alko, and L. K . Y anow ski... 356
M A C R O -K J E L D A H L Apparatus. See Nitrogen.
M agnesium Uranyl Acetate Reagent, Sensitiveness of— to Sodium and Potassium. C . H. Greene... 399 M altose. See Sugar.
Manganese. See Steel and Tungsten.
M anom eter, M icro-, Im proved. H. W . Smith, Jr ... 151 M attes, Spectrophotom etrio Determ ination of Copper in Ores and.
J. P. Menlig (C orrection )... 257 M elting Point Apparatus, E lectrically n ea ted . Edwin D ow zard and
M . J. R u sso... 74
M elting Point Apparatus, Precision. E . B. H ershberg... 312 Mercaptans, Potentiom etric Determ ination of. M . W . Tamele and
L. B. R y la n d ... 16 M ercuric Nitrate, Titration of Chloride Ion with— Solutions. Irving
R oberts... ... ... 365
M ercuric Sulfide. See next item. _ _ _
M ercury, A ccurate Separation of Precipitated M ercuric Sulfide and Sulfur in G ravim etric Determ ination of. E. R . Caley and M . G.
B urford... 43 M ercury, Determ ination of— b y Im proved Bichrom ate-Pyridine
M ethod. N. H . Furman and II. M . S tate... 467 M etallic Oxides. See Stannic Oxide.
Me t a l s: .
Assay of Platinum Group of. F . E . Beamish and J. J. R u s se ll.. . . 141 D evice for Determ ining R ate of Siphoning in— E xtraction Systems.
R. S. A sb u ry... 152
(See also kind o f metal.) # , _ ,
M eter, E lectron-Tube C onductance— Reading Continuously. R . L.
G arm an... 146
5 -M ethyl Furfural. See Furfural.
Mi c r oa n a l y s e s:
A cetyl Groups. Adalbert Elek and R . A. H a rte... 267 A m m onia Nitrogen in Eggs. S. L. Bandemer and P. J. S ch a ib le.. 201 C arbon and H ydrogen in Com pounds Containing Arsenic, Anti
m ony, Tin, Bismuth, and Phosphorus. F . C. Siibert and W . R.
Kirner... ... .. . •••••:... 353 Determ ination of Boiling Points of Liquids at Different Pressures.
E . E. Hays, F . W . Hart, and R . G. G ustavson... 286 Determination of Semi-Microquantities of Phosphates. N. H.
Furman and H . M . S tate... 420 Direct Simultaneous— of Carbon, H ydrogen, and Oxygen. IV.
Analysis of Bituminous Coals and Derived Products. W . R.
Kirner... *,... 57 Dumas Generation of Carbon Dioxide. W . S. I d e ... 56 Estim ation of Cuprous Oxide, C upric Oxide, and Copper in M ix
tures. S. Zerfoss and M . L. W illard... 303 Fluorine. W . D . A rm strong... 384 Handling and W eighing Absorption Tubes in— of Carbon and
H ydrogen. D . F . H aym an... ... 342 M icroscopical Qualitative Analysis of A ntim ony and Bismuth.
F. T . Jones and C . W . M a son ..., ... 428 Organic. R . T . Milner and M . S. Sherman:
I. Nitrogen by Dumas M eth od... 331 II. D rying and Analysis of H ygroscopic Substances... 427 Semi— for Basic Nitrogen in Plant Tissues. W . W . Umbreit and
P. W . W ilson... 361 Semi— for Iodom etric Determ ination of M altose in Studies of
Amylase A ction. M . L. Caldwell, S. E. Doebbeling, and S. H.
M anian... . ... 181 Semi— for Nitrogen. A. R . R o n z io ... 122 Semi— of A cetyl. E. P. Clark... 487 Spectrographic— o f Zinc. A. P. Vanselow and B. M . Laurance
(Correction, 400)... 240 Standard Liquids for M icroscopic Determination of R efractive
Index. A . H . Kunz and J. Spulnik... 485
M icrobalance. See Balance. ,
M icro-Cottrell Apparatus. See Boiling Point.
Microdistillation. See Distillation.
M icro-K jeldahl Distillation. See Nitrogen.
M icromanom eter, Im proved. H. W . Smith, J r... 151 M icroscopy, Fluorescent Light. C . J. Frosch and E. A . H auser 423 M icrovaporim etry. See Vaporim etric Determinations.
Microweighing. See-Weighing.
M ilk, Estim ation of— Solids in Bread. Charles Hoffm an, T . R . Schweitzer, and Gaston D a lb y ... 298 M ilk. Measuring Thickness of Thin, Flowing, Liquid E^lms. H . H.
Beck and K . G. W eck el... 258 M jne Dusts. See Dusts.
Minerals, Nephelometric Determ ination of Fluorine in. R . E . Stevens 248 M ixer, R apid and Efficient. D. H . Nelson... I l l Moisture. Sec Water.
M olecular W eight, M icrovaporim etric Determ ination of. J. B . Nie- derl, O. R . Trautz, and A. A. P lentl... 252 M olecular W eights, Nomographs for Determining— b y Freezing and
Boiling Point-M ethods. W . S. G ilfoil... 228 M olybdenum in Silicate R ocks. See Silicate Rocks.
M otor Fuels. See Petroleum.
N A P H T H A . See Petroleum.
Naphthenic A cid as Diluent in Measurement of Flow Rates of Hot-Oil Streams b y Dilution M ethod. T . A . Mangelsdorf, B. L. Sowers, and A . J. Deutser... 440 Naphthidine, Preparation of. Stuart Cohen and R . E . Oesper 306 Naringin. See Grapefruit.
Nephelometric Determination of Fluorine. R . E . Stevens... 248 Nesslerization. See Nitrogen.
Nitric Oxide, Determ ination of— in Coke-Oven Gas. J. A. Shaw.
(Correction, 281)... 162 Nitrobenzene. See Petroleum Lubricants.
4-Nitrocatechol. See Catechol.
Ni t r o g e n:
Application of Sem i-M icro-Kjeldahl M ethod to Analysis of Plant Tissue. W . W . Umbreit and V. S. B o n d ... 276 Determ ination b y Dumas M ethod. Organic Microanalysis. I.
R. T . Milner and M . S. Sherman... 331 M ethod of Eliminating Loss of— as A m m onia in K jeldahl Distilla
tions. H. S. M iller... 50 Microdeterm ination of Ammonia— in Eggs. S. L. Bandemer and
P. J. Schaible... 201 Nesslerization Applied D irectly to M acro-K jeldahl— Determ ination.
Sergius Morgulis and H. C. Spencer... 330 One-Piece Glass M icro-K jeldahl Distillation Apparatus. P . L. Kirk 223 Semi-Microanalysis of. A. R . R on zio... 122 • Sem i-M icrom ethod for Determining Basic— in Plant Tissues. W . W.
Umbreit and P. W . W ils o n ... 361 Simple M icro- and M acro-K jeldahl Steam Distillation Apparatus.
J. M . F ife ... 316
Special Head for Kjeldahl Distillation Apparatus. C. E . W eakley, J r... 367 Nomograph for Iodine Value of Tung Oil. C. S. W an and K . H o 282 Nomographs for Determining M olecular Weights b y Freezing and
Boiling Point Methods. W . S. G ilfoil... 228
O IL S :
Determ ination of Viscosity of Small Samples of— from — Im preg
nated Paper. H . F. Schneider, Jr., and T . A. M cC on n ell 28 Fat-E xtraction Apparatus for Feeds. C. E. W eakley, J r ... 388 Pipet for Determining A cidity of. W . F. D a v idson ... 483 R eport of Comm ittee on Analysis of Commercial Fats and— of
À. C . S. W . H . Irwin et al... 233 Studying the Hardness of Butter Fat. W . D . G a llu p .. . . . ! ! ! ! ! ! ! 123 Tung, Nomograph for Iodine Value of. C. S. W an and K . H o . . . . 282 Olefins. See Hydrocarbons.
Oleomargarine, Estimation of— in Ice Cream. T . H. W hitehead and
J. B. D u nson ... 203
Ores, Spectrophotom etrio Determination of C opper in M attes and.
J. P. M ehlig (C orrection)... 257
Or g a n i c Co m p o u n d s: .
Determ ination of H ydroxyl Groups in. M . Freed and A. M . W yn n e ... 278 D irect Determ ination of Oxygen in— Containing Sulfur. W . W .
Russell and M . E . M arks... 453 Organic Reagents in Inorganic Analysis. F. Feigl... 401 Unsaturated, Colorimetric Estimation of Peroxides in. C. A.
Young, R . R . V ogt, and J. A . N ieuwland... 198 Organic Microanalysis. See Microanalyses.
O xidation-Reduction Indicators. See Indicators.
Oxidim etry, Hexanitrato Amm onium Cerate as Proposed Reference Standard in. G . F. Smith, V. R . Sullivan, and Gerald F ra nk 449 Oxygen, D irect Determination of— in Organic Sulfur Com pounds.
W . W . Russell and M . E . M arks... 453 Oxygen M icrodeterm ination. See Microanalyses.
P A P E R , Oil-Impregnated, Determination of Viscosity of Small Sam
ples of Oil from . H. F. Schneider, Jr., and T . A. M cC on n ell 28 Paper, Zinc Pigments in— Affect a-Cellulose, C opper N um ber, and
A cidity T ests... 62 Particle Size of Insecticidal Dust. L. D . Goodhue and C. M . S m ith. 469 Perchloric A cid. See Selenium and Steel.
Peroxides, C olorim etric Estim ation of— in Unsaturated Compounds.
C. A . Young, R . R . V ogt, and J. A . Nieuwland... 198 Persulfate-Arsenite M ethod. See Steel.
Pe t r o l e u m:
C orrosion Test M ethods on Liquid Butane as M otor Fuel. M . M . H olm ... 299 Determination of A cidity in Insulating Oil. R . N . Evans and J. E.
D av en port... . ... 287 Determination of Elementary Sulfur in Gasoline and Naphtha.
Charles W irth III and J. R. Strong... 344 Determ ination of Smoke Tendency of Refined Kerosene. J. B.
Terry and Edward F ield... 293 Free Sulfur in— Distillates. S. C om a y ... 460 Lubricante:
Analytical M ethods for Solvent Refining of Lubricating Oils with Nitrobenzene. S. S. Kurtz, Jr., C. E. Headington, and B.
Zieber... 1
Laboratory Service Testing of A utom otive Lubricating Greases.
E. N. K lem gard... S3 Photom etric Determ ination of Iron in Used Engine Oils. A. R .
Rescorla, E . M . Fry, and F. L. Carnahan... 242 Measurement of Flow Rates of Hot-Oil Streams b y Dilution M ethod.
T. A. Mangelsdorf, B . L. Sowers, and A. J. Deutser... 440
NOVEMBER 15, 1936 ANALYTICAL EDITION 495 Mineral Oil-Pyrethrura Sprays. See Sprays.
Physical and Chemical Properties o f— Fractions. H . T . Rail and H . M . Smith:
I. Behavior in D ilute Benzene S olutions... 324 I I. Relations between M olecular W eight and Concentration in
Dilute S olu tion ... 436 Potentiom etric Determ ination of Mercaptans. M . W . Tamele and
L. B. R y la n d ... 16 (S«c also Asphalt and Hydrocarbons.)
o-Phenanthroline Ferrous Ion. See Iodides.
Phenol Coefficient. See Germicide.
Phosgene, Determ ination o f— in Gases from Experimental Firps E x
tinguished with C arbon Tetrachloride. W . P. Y ant, J. C. Olsen, H . H. Storch, J. B . Littlefield, and Leopold Scheflan... 20 Phosphates, Determ ination of Semi-Microquantities of. N. H. Fur
man and II. M . S tate... 420 Phosphoric Acids, Mixtures o f— for Temperature Baths from 100° to
250° C. B. E . Christensen and A. E. K in g ... 194 Phosphorus, Determ ination of— in Stainless Steels Using Perchloric
A cid. C. D . Susano and J. H. Barnett, J r... 183 Photoelectric Colorimeter. See Colorimeter.
Photom etric Determination of Iron in Used Engine Oils. A . R . Res- corla, E. M . Fry, and F. L. Carnahan... 242 Photom etric Determ ination of Silicate in Sea W ater. R . J. R obinson
and H. J. S poor... 455 Phthalate Plasticizers. See Plasticizers.
Picric A cid. See Sulfur.
Pipet for Determining Oil A cidity. W. F. D a v idson ... 483 Pipet for Titrating D ark-Colored Liquids in T w o Phases. M . M .
Hicks-Bruun and L. W . C laffey... 229 Pitchblende. See Radium .
Pl a n t s: # # #
Application of Sem i-M icro-Kjeldahl M ethod to Analysis of— Tissue.
W. W . U mbreit and Y. S. B on d ... 276 D eterm ination of R educing Sugars and Sucrose in— Materials.
W . Z. H assid... 138 Determ ination of Starch in— Tissues. G. W . Pucher and H . B.
V ick ery... 92 Sem i-M icrom ethod for Determining Basic Nitrogen in— Tissues.
W . W . Umbreit and P. W . W ilson. . . . ... 361 Spectrographic Microdeterm ination of Zinc in. A. P. Vanselow and
B . M . Laurance. (Correction, 400)... 240 Plasticity Measurements. See Rubber.
Plasticizers, Phthalate, Determ ination of. F. C. Tham es... 418 Plastics, Bituminous, Determ ination o f Flow Properties of. R . N.
Traxler... 185 Platinum Metals. See Metals.
Portland Cement. See Cement.
Po t a s s i u m: , . t
Determ ination of Small Amounts of— b y Silver Cobaltim trite. R . J.
Robinson and G. L. Putnam ... 211 New Reagent for. I. Qualitative. A. W . Clark and C. O. Willits 209 Sensitiveness of Magnesium Uranyl A cetate Reagent to Sodium and.
C. H. Greene... 399 Potassium Iodide, Titration of Silver with. A lbert B loom and W . M.
M c N a b b ... 107 Potentiom etric Determ ination o f M ercaptans. M . W . Tamele and
L. B . R y la n d . .•• •.•... 16 Potentiom etric Titration. See Titration.
Pycnom eter, Precision— for Liquids. S. T. Yuster and L . H . R eyer- s o n ... 61 Pyrethrins. See Sprays.
Pyrethrum Sprays. See Sprays.
Pyridine-Bichrom ate M ethod. See M ercury.
Pyroligneous Liquors, Determ ination of Form ic A cid in. H. D. W eihe and P. B. J acobs...‘ ... • 44 Pyrom eter, Simple Portable Aradiant C onvection. F . T . Barr and
R . F . B erger... 393
Q U A N T IT A T IV E Analysis, Application of Statistics to. A . A.
Benedetti-Pichler... 373
R A D IU M , Determ ination of— in Carnotite and Pitchblende. L. D.
R ob erts... 5 R ecording Balance. See Balance. .
Reduction-Oxidation Indicators. See Indicators.
R efractive Index, Standard Liquids for M icroscopic Determ ination of.
A. H . Kunz and J. Spulnik... 485 R efractom eter, Differential. D . R au and W . E. R oseveare... 72 Refractory Crucibles. Preparation of— for Laboratory. P. S. R oller,
D . R ittenberg, ana A. G a b rie l. ... 486 Resins, A lkyd, Analysis of. Frederick K avanagh... 397
(See also Plasticizers.)
Rh e n i u m:
D etection o f— in Sodium Carbonate Bead. Herman Y a g od a 133 Determ ination of:
I. Qualitative. L. C. H u rd ... 11 II. Geilmann R eaction. L. C. Hurd and B. J. B abler... 112 Rodgers R ing Burner. See Burner.
R otenone Determ ination b y C olorim etric M ethods. H . D . Rogers and J. A. Calam ari... 135
Ru b b e r:
Determ ination of Free Sulfur in. E. W . Oldham, L. M . Baker, and M . W . Cray t o r ... 41 Determ ination of Guanidines in— Stocks and Consum ption of
Guanidines during Cure. B. J. H um phrey... 153 Determ ination of Sulfur in— Com pounds. C. H . Lindsly:
I. Precipitation of Barium Sulfate in Presence of Picric A cid . . . 176 II. Sources of Error in Determ ination of Free Sulfur in— C om
pounds Containing R apid Accelerators and Sulfur-Bearing Accelerators... 179 Im pact Cutting Test for Tire Tread Stocks. J. H. D illon ... 68 New— Particle C ount in H evea Latex. E. E. Langeland... 174 Pendulum as Source o f E nergy for Plasticity Measurements. Ira
W illiam s... 304
S A L IC IN , Estim ation and Identification of the Glucoside. M . B.
Jacobs and N. T . F arinacci... 279 Saponification Numbers of Asphaltic Petroleum Residues. J. II.
Bruun and L. W . C laffey... 255
Sea W ater. See W ater.
Sedim entation Apparatus for Determ ining Particle Size of Insecticidal Dusts. L. D . Goodhue and C . M . S m ith... 469 Seil M ethod. See Sprays.
Se l e n i u m:
Copper C hloride-Perchloric A cid M ethod for Gravim etric D eter
mination of— in A lloy Steel. Louis Silverm an... 132 D eterm ination of— in 18-8 Stainless Steels. G. G. M arvin with
W . C . S chum b... 109 Determ ination of— in Steel. W . C. Colem an and C. R . M cC rosky 196 New C olorim etric Procedure for— D eterm ination. K . W . Franke,
R obert Burris, and R . S . H u tto n ... 435 Shaking. «See Agitation.
Shellac, Fluidity and H ygroscopic Properties of. R . V . Tow nend and
> W . R . C la y to n . ... 108
Silica, D eterm ination of— in Boiler W ater. M . C . Schwartz (C or
; rection )... 323
Silicate, P hotom etric Determ ination of— in Sea W ater. R . J. R obin son and H. J. S p o o r .. ... 455 Silicate R ocks, D eterm ination of Chrom ium , Vanadium, and M oly b
denum in. E. B. Sandell... 336 Silicic A cid, Ignition of. K . A . Krieger and H . S. Lukens... 118 Silicosis. See Dusts.
Silver, Ceric A m m onium Sulfate and Starch as Indicators in— Titra
tion with Potassium Iodide. A lbert B loom and W . M . M c N a b b . . 167 Silver Arsenate, Determ ination of Arsenic in. Austin Pom erantz and
W . M . M c N a b b ... 466 Silver Cobaltinitrite, Determ ination of Small Amounts of Potassium
b y. R. J. R obinson and G. L. Putnam ... 211 Silver-Copper Alloys, Electroanalysis of. W . L. M iller... 431 Siphoning, D evice for Determining R ate o f— in M etal E xtraction
Systems. R . S. A sbury. ... 152
Sodium, Determination o f— in High Aluminous M aterial. H . V.
Churchill, R . W . Bridges, and A. L. M iller... 348 Sodium, Sensitiveness of Magnesium Uranyl A cetate Reagent to
Potassium and. C . II. Greene... 399 Sodium -Am m onia M ethod. Sec Sulfur.
Sodium Carbonate Bead, D etection of Rhenium in. Herman Yagoda 133 Sodium H yposulfite Solutions for Absorption of Oxygen. D oroth y
Q u ig g le ... . ... 363 Sodium Thiosulfate, Standardization of— Iodom etrically against
C opper. L. O. H ill. . . ... 200 Soils, Determ ination of Zinc in. H . M . Boggs and A. O. A lb en 97 Solubility Determ inations, Hill M ethod for. T . W . E va n s ... 206 Solvents, Determining Evaporation R ate of— at High Temperatures.
F . C . Thorn and C . B ow m an... 432
Sp e c t r o o r a p h i c De t e r m i n a t i o n s:
Copper in Ores and M attes. J. P. M ehlig (C orrection )... 257 D etection of Lanthanum, Yttrium , and Ytterbium from Spark in
Flame Spectra. O. § . Plantinga and C. J. R o d d e n ... 232 Fluorescent Light M icroscopy. C . J. Frosch and E. A. Hauser. . . 423 M icrodeterm ination of Zinc. A. P. Vanselow and B. M . Laurance.
(Correction, 400)... 240 Quantitative Determ ination of Cadmium and Lead in Zinc. II. M .
Sullivan... 382 Spindle for Insulating Wires. J. M . S turtevant... 341 Spray, Dithizone as Reagent for Dissolving and Determ ining— Resi
due Lead. W . E. W h ite... 231
Sprays, Loss of Pyrethrins during Analysis of M ineral O il-Pyrethrum E xtracts b y Seil M ethod. J. J. T . G raham ... 222 Stannic Oxide, Separation of— from Various M etallic Oxides by
Ignition with A m m onium Iodide. .E. R . C aley and M . G. Burford 114 Starch, Determ ination of— in Plant Tissues. G. W . Pucher and H . B.
V ic k e r y ... 92 (See also Silver.)
St e e l:
A lloy, Gravimetric Determ ination of Selenium in. Louis Silverman 132 Corrosion-Resisting 18-8, Determ ination of Manganese in. Louis
Silverm an... 383 Determ ination of Manganese in Tungsten and Ferrotungsten. G. F.
Smith, J. A. M cH ard, and K . L. O lson ... 350 Determ ination of Phosphorus in Stainless— Using Perchloric A cid.
C. D . Susano nnd J. H . Barnett, J r... 183 Determ ination of Selenium in. W. C . Coleman and C . R . M cC rosky 196 Determ ining Sulfur in Plain and A lloy— b y C om bustion M ethod.
C. II. Hale, Jr., and W . F. M u ehlberg... 317 1 8-8 Stainless, Determ ination of Selenium in. G. G. M arvin with
W . C. Schum b ... 109 M odified Persulfate-Arsenite M ethod for Manganese in. E . B.
Sandell, I. M . Kolthoff, and J. J. Lingane (C orrection )... 73 Stills. See Distillation.
Stirrer. See Agitation.
Strontium, Separation of— , Barium, and Lead from Calcium and Other M etals. H. H . W illard and E . W . G oodspeed... 4 1 4 - Sucrose. See Sugar.
Su g a r:
Apparatus for— and Other Titrations. E . S. W e s t... 62 Apparent and True Solids of— Cane Juice. C . A. F ort and Nelson
M cK aig, J r ... ... 333 Determ ination of Reducing— and Sucrose in Plant Materials.
W . Z. H assid... 138 R aw Cane, Dextrose-Levulose R atio and Polarizing Constants of.
F. W . Zerban... 321
Sem i-M icrom ethod for Iodom etric Determ ination of M altose in Studies of Amylase A ction. M . L. Caldwell, S. E . Doebbeling, and S. H. M anian... 181 T urbidity in— Products. IV . Preparation of R aw — Solutions for
Determ ination of C olor and T urbidity. F. W . Zerban and Louis S attler... 168
Su l f a t e:
Barium Chrom ate M ethod for V olum etric Determ ination of— in
W ater. M . D . F oster... 195 Determ ination o f— b y Titration with Lead Nitrate, Using Eosin as
Indicator. J. E . R ic ci... 130 D irect Titration o f— with Tetrahydroxyquinone as Internal Indi
cator. R . T . Sheen and H. L. Kahler... 127
Su l f u r:
Accurate Separation of Precipitated M ercuric Sulfide and— in Gravi
metric Determ ination of M ercury. E . R . Caley and M . G . Bur
fo r d ... 43 C om bustion M ethod for Determining— in Plain and A lloy Steels.
C. H. Hale, Jr., and W . F. M uehlberg... 317 Determination of Elem entary— in Gasoline and Naphtha. Charles
Wirth III and J. R . Strong... 344
■196 INDUSTRIAL AND ENGINEERING CHEMISTRY Determ ination of Free— in R ubber. E . W . Oldham, L. M . Baker,
and M . W . C ra y tor... . ... 41 D eterm ination of Organic— b y Liquid A m m onia-Sodium M ethod.
F. J. Sowa, V. G. A rcadi, and J. A . Nieuwland. ... 49 D eterm ination of— in R ubber Com pounds. C. H. Lindsly: _
I. Precipitation of Barium Sulfate m Presence of Picric A c i d .. . 176 II. Sources of Error in Determ ination of Free— in R ubber C om
pounds Containing R apid Accelerators and— Bearing Accelera
tors... 179 D irect Determ ination of Oxygen in Organic— Compounds. W .W .
Russell and M . E . M arks... 453 Free— in Petroleum Distillates. S. C o m a y ... ... 460 Surface-Tension Measurements of Viscous Liquids. A . H. Pfund and
E . W . Greenfield... 81
T E M P E R A T U R E Baths, Inorganic Liquid M ixture for— from 100°
to 250° C . B . E . Christensen and A . E . K ing. . . . %... 194 Tetraethyl Amm onium Iodide as Reagent in M icroscopical Qualitative
Analysis of A ntim ony and Bismuth. F. T . Jones and C . W. M ason 428 Tetrahydroxyquinone. See Sulfates.
Therm ionic Titrim eter. See Titrimeter.
Therm oregulator, A djustable Sensitive. J. Y . Y ee and R . 0 . E. Davis 477 Thermoregulator, Sensitive. L. D . G oodh ue... ... ... 387 Therm ostat, Versatile Low-Tem perature. G. B. lle is ig ... 149 Tin. See Electrolysis.
Tires. See Rubber.
Titanium , Rapid M ethod for Determining, H . B . H ope, R . F. Moran, and A . O. P loetz... .••••... 48 Titanium Titration. See Titration.
Ti t r a t i o n: .
A ction o f 4-N itrocatechol as— Indicator. S. R . C ooper and V . J.
T u la n e... 210 Alkali, N ew Buret for. L. S. K eyser... 121 Apparatus for Sugar and Other. E. S. W e st ... 62 Chloride Ion with M ercuric Nitrate Solutions. Irving R ob erts. . . . 365 Determ ination of Iron b y Titanium — and b y a .a '-B ipyridin e
C olorim etry. W . D . M cF arlane..._... .. . . . 124 Determ ination of Sulfate b y — with Lead Nitrate, Using Eosin as
Indicator. J. E. R ic ci... 130 Direct— of Sulfates with Tetrahydroxyquinone as Internal Indi
cator. R . T. Sheen and H. L. K a h le r .. . ... 127 Pipet for Titrating D ark-C olored Liquids in T w o Phases. M . M .
Hicks-Bruun and L. W . C la ffey ... 229 Potentiom etrie, New Buret for. L. S. K ey ser... 82 Potentiom etrie— of A cidity in Insulating Oil Using Glass Electrode
in 7i-Butanol. R . N. Evans and J. E . D av en port... 287 Silver with Potassium Iodide. A lbert B loom and W . M . M cN a b b . 167 Titrimeter, Therm ionic— without Batteries. H. H . W illard and O. B.
Hager, Jr. (Correction, 180)... 144 T om a to Juice, Buffer C apacity of. Margarethe Oakley and J. C.
Krantz, J r... 205 Tubing. See Copper.
T ung Oil. See Oils.
Tungsten, Determ ination of Manganese in Ferrotungsten and. G. F.
Smith, J. A . M cH ard, and K . L. Olson... 350 Turbidity. See Sugar Products.
V A L V E , C heck— for Wash Bottles. F. H . Sm ith... 400 Valve. Sensitive Check. E . L. G reen... 40 Vanadium in Silicate R ocks. See Silicate Rocks.
Vapor Pressure Apparatus, Variable V apor-Volum e Barometric T ype of. E . M . Barber and A. V . R itch ie... 472 Vaporimetrio Determination, M icro— of M olecular W eight. J. B.
Niederl, O. R . Trautz, and A . A. P le n t l... 252 Viscometers, Concentric Cylinder, Extending Useful Range of. Lom
bard Squires and R . L. D ockenclorff. . . ... 295 Viscometers, Suspended-Level, M odification of. E . H . Payne and
C. C. M iller... 300 Viscous Liquids. Sec Liquids.
Vitamin D Units, Energy Equivalents of. R . W . Haman and Harry Steenbock... 291 V olum etric Determinations, Calculating the Blank in. Bartholow
P a rk ... 32
W A S H Bottles, Check Valve for. F. H . Sm ith... 400
Wa t e r:
Analysis. Simplification of Isohydric Indicator M ethod. Sverre Stene... 398 Barium Chromate M ethod for Volumetric Determ ination of Sulfate
in. M . D . F oster... 195 Boiler, Determ ination of Silica in. M . C. Schwartz (C orrection ). . . 323 Glass Head for Laboratory— Still. P. F. Sharp and E. B . Struble. 316 New Moisture Tube. H. B . Alexander... 314 Sea, Determ ination of Iron in. N. W . Rakestraw, H. E . M ahncke,
and E . F. B each... ... 136 Sea, Photom etric Determ ination of Silicate in. R . J. R obinson
and H. J. S poor... 455 Wear, Accelerated M ethod for Determining— Caused b y Abrasion.
F. D . Snell and K . W . Haeseler... 191 Weighing, Errors in M icro— D ue to Use of Lead Shot in Tares. R . J.
W illiam s... 229 Willard and W inter M ethod. See Fluorine.
W ine, M ethods of Analyzing. C. H . McCharles and G . A. P itm an. . 55 W inter and Willard M ethod. See Fluorine.
Wires, Insulating, Spindle for. J. M . S turtcvant... .... ... 341 W ood, Com position of M iddle Lamella of Lignin in Douglas Fir. A. J.
B a i l e y . . . ... >... 52 W ood, Lignin in Douglas Fir. A . J. B ailey... 389
X - R A Y Diffraction M ethod for Quantitative Analysis of M ine Dusts.
G. L. Clark and D . H. R eynolds... 36 X -R a y s, Identification of Crystalline Materials b y — Diffraction Pat
terns. J. D . Hanawalt and H . W . R in n ... 244
Y T T E R B IU M , D etection of Lanthanum, Yttrium , and— from Spark in Flame Spectra. O. S. Plantinga and C. J. R o d d e n ... 232 Yttrium . See preceding item,
Z I N C :
Determ ination of— in Soils. H . M . Boggs and A . O. A lb en ... 97 Pigments in Paper A ffect a-Cellulose, C opper Num ber, and A cidity
Tests ... 62 Quantitative Determ ination of Cadmium and Lead in. H . M .
Sullivan... 382
Quantitative Separation and Determination of Aluminum and.
F. H. Fish and J. M . Smith, Jr. (Correction. 477)... 349 Spectrographic Microdeterm ination of. A . P. Vanselow and B. M .
Laurance. (Correction, 400)... 240
