INDUSTRIAL AND ENGINEERING CHEMISTRY
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Industrial and Engineering
Chemistry
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419 Fourth Ave., New York, N". Y.
706 Mills Building, Washington, D . C.
Entered as second class matter at Easton, Pa. Issued three times a month. Industrial Edition on the 1st, News Edition on tlie 10th and. 20tti. Subscription to Industrial & Engineering Chemistry, $7.50 per year, News Edition only, $1.50 per year. Single copies, 10 cents. Subscriptions should be sent to Charles L. Parsons, Secretary, 1709 G St., N . W., Washington, D . C.
AUGUST 20, 1927
No. 16
Officers of the Host Section /' •N
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ADVBRTISINQ DEPARTMENT:
EDITORIAL, OFFICE:
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Managing Editor: ROBBRT P. FISCHBUS
Assistant to the Editor: N. A. PARKINSON Associate Editor: ID. H. KIIXEFFBR
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NEWS EDITION
Vol. 5
Edition
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Published by the^imeriean &iemiealSoeietij Boston, Pa.
Editor: HARRISON E. H O W S
News
"TlJ Raymond R . Jared
L. W. Rowe, present chairman of the Detroit Section, was born in Toledo, Ohio, February 2, 1891. H e graduated from Wooster Preparatory School, Wooster, Ohio, i n 1910, and. from Purdue University with degree of B.S. in Chemistry in 1913. H e received his M.S. degree from Purdue in 1917, following nonresident study and experience in pharmacology. Two summers prior t o graduation from Purdue were spent i n the chemical laboratory of an oil refinery, and since June, 1913, Mr. Rowe has been employed by Parke, Davis & Company at Detroit in their medical research laboratories.
George W. Winchester
David Segal
the little Montreal River keeps the Upper Peninsula of Michigan and t h e State of Wisconsin apart. He was graduated from the Ironwood High School and then crossed the line and attended Carroll College at Waukesha, Wis. He was graduated from this college with the degree of Bachelor of Science in Chemistry in 1916. He taught High School science and mathematics at Baraboo, Wis., and after this served in the Chemical Warfare Service at Kdgewood Arsenal, Maryland. He is now assistant chief chemist of the U. S. Rubber Co. and chief of Development Research. He was successively secretary, treasurer, and vice president of the Detroit Section—an eloquent commentary on his activity in local chemical affairs. David Segal, immediate past secretary of the Detroit Section, was born in Boston, Mass., October 1, 1895, and received his early education in that city. In 1918, he was graduated from Tufts College, receiving the degree of Bachelor of Science in Chemistry (chemical engineering). Shortly after graduation he entered the U. S. Chemical Warfare Service and was engaged in the manufacture of "Lewisite" a t Willoughby, Ohio. From April, 1919, to December, 1921, he held t h e position of benzol and research chemist in the service of t h e Ford Motor Co. From March to December, 1922, he was chemist for the Studebaker Corporation, but left t o become chief chemist for the Hupp Motor Car Co., which position he held from 1923 t o 1926. He is now metallurgist for this company. Mr. Segal became interested in the Detroit Section at once after locating in the automobile city. He was elected treasurer for the season of 1925—26, and was elected secretary for the 1926-27 period. H e is now vice president. These officers are largely responsible for the preliminary plans for entertaining the 1927 Fall Meeting of the American Chemical Society which it is hoped will be one of the most successful in the history of the Society. Students of chemistry, graduate or undergraduate, can obtain rooms for the Detroit meeting by addressing Prof. O. E . Madison, College of the City of Detroit, before September 1. The first 50 will b e housed free of charge. All others will pay a nominal charge.
Abstracts of Detroit Papers Available Raymond R. Jared, newly elected secretary of t h e Detroit Section, was born in Terre Haute, Indiana, and lived there for some years. H e graduated from Indiana State Normal College with degree of A.B. in 1911, and followed this with graduate work in chemistry at the University of Chicago. He was given an A.M. degree in Education at the University of Michigan. He taught chemistry and physics i n Terre Haute, Indiana, four years before the war. During the war Mr. Jared was resident government chemist for Inspection Division of the Ordnance Department, located at tfie Penn Seaboard Steel Corporation, N e w Haven, Conn., and was later employed for a short time in the D . L. & W. Railroad ^Laboratories. At present Mr. Jared is head of the Science group i n the Cass Technical High School, Detroit, Michigan. George "Vy* Winchester, chairman of the Detroit Section during the 1926-27 period, was born at Ironwood, Michigan, where
The A. C. S. News Service, 706 Mills Building, Washington, D . C , is in a position to supply a limited number of complete sets of the abstracts of papers presented to the Detroit meeting of the AMERICAN CHEMICAL SOCIETY, at $1.00 per set.
The abstracts
will be as furnished by the authors of papers and will be mailed immediately after the meeting. While we cannot guarantee these sets of abstracts to be complete, they will contain all abstracts obtainable from Division and Section Secretaries up to and through the dates of the meeting of the Society. The low price of $1.00 has been maintained in spite of the increase in the number of papers. In order to save unnecessary correspondence and the keeping of records, those desiring sets of abstracts are requested to remit $1.06 with their order. I t will facilitate matters greatly if those desiring abstracts will notify t h e A. C. S. News Service at once.
August 20, 1927
7. 8. 9. 10. 11. 12.
INDUSTRIAL AND ENGINEERING
(Continued from page 3) F. B. Carpenter and H . L. Moxon. Influence of Fineness of Grinding on t h e Activity of Nitrogen as Determined by the Permanganate Methods. V. H. Kadish. Milwaukee's Sewage Disposal Plant in Motion Pictures. (Projector.) Firman E. Bear. The Scientific Use of Nitrogen Fertilizers. C. M. Eible. Tiie Influence of Sulfates on the Volumetric Determination of Phosphorus. G. C. Connolly, C. C. Howes, and K. K. Worthington. Fluosilicates Prepared from Waste Gases of Phosphate Rock Acidulating Plants. R. N. Brackett and B. F. Robertson. Some Results in the Determination of Mineral Ammonia in Fertilizers by the Arnd Method.
Division of Gas and Fuel Chemistry O. G. BROWN, Chairman 0. O. M A W S I S , Secretary
Flemish Room, Tuller Hotel W e d n e s d a y , 9.30 A.M. SYMPOSIUM : CHEMISTRY OF INDUSTRIAL G A S
1. 2. 3. 4. 5. 6. 7.
A. H. White and F . W. Hightower. The Synthesis of Methane from Water Gas. (Lantern.) J. D. Davis, D. F . Smith, and D . A. Reynolds. The Formation of Liquid Hydrocarbons from Water Gas. (Lantern.) R. L. Brown and A. E . Galloway. Methanol from Hydrogen and Carbon Monoxide under Pressure. (Lantern.) R. M. Conner a n d F . E. Vandaveer. The Purposes and Accomplishments of the Testing Laboratory of the American Gas Association. (Lantern.) C. C. Minuter. Equilibrium Combustion of a Mixture of Carbon Monoxide and Hydrogen. D . J. Demorest. Carbonization of Powdered Coal. (Lantern.) A. H. White and F. W. Hightower. Apparatus for Storing and Cireialatiixg Gases. (Lantern.) W e d n e s d a y , 2.00 P . M . MISCELLANEOUS PAPERS
8. 9. 10. 11. 12.
13. 14. 15.
G. W. Jones. T h e Inflammability of Refrigerants: Mixtures of Methyl and Ethyl Chlorides and Bromides. (Lantern^) H. J. Masson a n d W . F. Hamilton. Study of the AutoIgnition Temperatures of Gasolines of Known "Knock Rating. *' (Lantern.) S. H. Katz and F . W. Frevert. Carbon Monoxide in Two Large Garages. (Lantern.) J. D. Davis and D. A. Reynolds. The Effect of Physical Characteristics of Coke on Reactivity. (Lantern.) A. W. Coffman and T. E . Layng. A Differential Index of the Coking Power of Coal with Reference to Energy Distribution, Agglutination, and Classification. (Lantern.) R. L. Brown and B. F. Branting. Composition of the Tar from Low-Temperature Carbonization of Utah Coal. I. (Lantern.) E. P. Schoch. New Methods for Analyzing and Testing Lignite. E . P. Scnoch a n d A . H. Ullrich. The Determination of Hydrogeai in Iagnite and Coal.
Section of History of Chemistry Iv. C. NvtwEVL, Chairman T B N N E Y L. DAVIS, Secretary
1. 2. •3. 4. 5. 6. 7. 8. 9.
Bagley Room, Tuller Hotel T h u r s d a y , 9.30 A.M. Avery A. Aslidown. Marcellin Berthelot. Earle R. Calcy. Mercury and Its Compounds in Ancient Times. Tenney I*. Davis. Boerhaave's Account of Paracelsus and Van Helmont. C. J. Brockman. The Origin of Voltaic Electricity. The Contact vs. t h e Chemical Theory before the Concept of Electromotive Force Was Developed. V. R. K&katnur. Are Cavendish and Priestley the First Diseovexers of Hydrogen and Oxygen? V. R. XLcfckatimr. Hieroglyphic Findings of the Origin of Chemistry, Friday, 9.30 A . M . Charles Albert Browne. Ralph Waldo Emerson's Relations to- Chemistry. Frank B. Dains. Organic Chemistry in the United States during t h e First Half of the Nineteenth Century, Edgar F. Smith.. A Talk on the History of Chemistry.
CHEMISTRY
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Division of Industrial a n d Engineering Chemistry W. H. MCADAMS, Chairman E. M. BOXINGS, Secretary
Ball Room, Statler Hotel SYMPOSIUM: CHEMISTRY'S CONTRIBUTION TO AUTOMOTIVE TRANSPORTATION
T. A. BOYD, Chairman
Joint Session with the Division of Petroleum Chemistry, Tuesday afternoon and Wednesday. 1. 2. 3. 4. 5. 6.
7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18.
Tuesday, 2.00 P . M . T. A. Boyd. Introduction to the Symposium. J. A. Mathews. Metallurgy and Motors. W. H. Giliett. Miscellaneous Non-Ferrous Metals and Alloys in xAutomotive Transportation. Francis C. Frary. Aluminum and Its Alloys. Lowell H. Milligan. Abrasives and Grinding. William Blum. The Contribution of Chemistry to Electroplating in the Automobile Industry. Wednesday, 9.30 A . M . E. Ward Tillotson. Automobile Glasses. W. C. Geer. The Contribution of Rubber Chemistry to Automotive Transportation. Norman Hertz. Chemistry's Contribution to Leather Manufacturers. Hamilton Bradshaw. Coated Textiles: One of Chemistry's Contributions to Automotive Transportation. H. C. Mougey. The Contribution of Chemistry to Automobile Finishes. A. V. H. Mory- Synthetic Resins. Wednesday, 2.00 P . M . W. L. Reinhardt. The Contribution of Chemistry to the Automotive Storage Battery. Arthur S. Watts. Spark Plug Insulation. J. Bennett Hill. Motor Fuels. L. W. Parsons. Chemistry and the Development of Automotive Lubricants. D . B, Keyes. Anti-Freeze Compounds. Charles M. Upham. The Chemist's Contribution to Roads. Thursday, 9.30 A . M . GENERAL PAPERS
19.
S. W. Parr and A. W. Coif man. The Surface Tension of Metals with Reference to Soldering Conditions. 20. R. V. Wilson and R. S. Dean. The Action of Fluxes in Soft Soldering and a New Class of Fluxes for Soft Soldering. 21. M. G. Mellon, W. L. Reed, and H. L. Wilkins. Determining Lead by the Method of Lux. 22. K. Hickman and D . Hyndman. An Electrical Solution Mixing Device. 23. M. G. Mellon and F. R. Swim. The Potentiometric Titration of Boric Acid in the Presence of Certain Inorganic Salts. 24. E . F. Kohman and N. H. Sanborn. Tin Plate and the Electrochemical Series. 25. P. K. Frolich, H. B. Spalding, and T. S. Bacon. Destructive Distillation of Wood and Cellulose under Pressure. 26. F. N. Peters, Jr., and O. C. Stanger. A Small High-Pressure Autoclave. All authors require lanterns.
Division of Leather and Gelatin Chemistry JOHN ARTHUR WILSON, Chairman ARTHUR W. THOMAS, Secretary
Tuesday, 2.00 P . M . Joint Symposium on the "PRESENT STATUS OF THE CHEMISTRY
OF THE PROTEINS" with the Divisions of Physical and Inorganic Chemistry and Biological Chemistry. Wednesday, 9.30 A.M. a n d 2.00 P . M . Rooms 1400-1404, Statler Hotel 1. A. W. Thomas and M. W. Kelly. Effect of Pretreatment upon Hydrolysis of Hide Powder by Saturated Lime Water. 2. M. W. Kelly. Hydrolysis of Hide Powder b y Saturated Sodium Chloride Solutions of Varying Acidities. 3. H. B. Merrill and J. W. Fleming. The Effect of Temperature on the Hydrolysis of Calf Skin and Calf Hair b y Saturated I/ime Water.
INDUSTRIAL
6 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
AND ENGINEERING
R. O. Page and A. W. Page. The Influence of Neutral Salts on the Plumping of Hides. C. B. Davis and H. M. Salisbury. The Influence of Previous History upon Viscosity of Gelatin Solutions. M. Briefer and J. H. Cohen. Pure Food Gelatin; A Study of Some Physical Properties Related to I t s Use in Manufacture. H. 33. Merrill. A Preliminary Study of Fat-Liquoring. M. W. Kelly. A Study of Tannage b y Aluminum Salts. A. "W. Thomas. Iron Tannage. J. G. Niedercorn. Molybdenum Tannage. A. W. Thomas. A Study of Syntan Tannage. H. B. Merrill and J. Behnke. The Effect of Temperature o n the Water Content of Leathers a t Different Relative Humidities. W. L. Varo. Effect of Finishing Materials on the Ventilating Properties of Leather.
Division of Chemistry of Medicinal Products H. A. SHONLE,
Chairman
A. V.\ rr.~, Secretary T u e s d a y , 2.00 P . M . Henry II Room, Statler Hotel Joint session with the Agricultural and Food, Biological, and Dye Divisions. W e d n e s d a y , 9.30 A. M . a n d 2 P . M . Gothic Room, Tuller Hotel 1. Alfred E. Jurist and Walter G. Christiansen. Studies on the Analysis and Chemistry of Neo-Arsphenamine. 2. L. H. Warren. The Determination of Atropine in Presence of Morphine. 3. L. H. Warren. A Note on the Assay of Sulfonal Tablets. 4. Herbert C. Hamilton. T h e Scope of Chemical Disinfection. 5. Arthur D. Holmes and Walter Z. Clough. The Chemical arid Physical Characteristics of Cod-Liver Oil. 6. M. S. Kharasch, H. A. Shonle, and John H. Waldo. Theory and Practice of Producing Water-Soluble Organic Metallic Compounds. 7. Edward Lyons. Some N e w Organic Derivatives of Pentavalent Arsenic. 8. Arthur W. Dox. Action of the Grignard Reagent on Alkylbarbituric Acids. 9. Oliver Kamm. T h e Dialysis of Pituitrin. 10. Oliver Kamm, T. B . Aldrich, I. W. Grote, L. W. Rowe, and Jt. P. Bugbee. T h e Isolation of the Two Active Principles of the Posterior Lobe of the Pituitary Gland.
Division of Organic Chemistry F. B . D A I N S , Chairman FRANK C. WHITMORE, Secretary
1. 2. 3.
4.
5. 6. 7. 8. 9. 10. 11. 12.
C. D. H U R D , Secretary pro tern Small Banquet Room, Statler Hotel T u e s d a y , 2.00 P . M . P. A. Levene. On the Active Forms of Glucose. William Robert Cornthwaite and William Lloyd Evans. The Action of Potassium Hydroxide on Dihydroxy Acetone. Roger Adams, T. S. Hamilton, J. White, and J. R . Marshall. The Use of Platinum Oxide Platinum Black in t h e Reduction of Pyridine and Its Derivatives, Ketones, and Aromatic Hydrocarbons. W. L. Gilliland. The Reaction of Carbon Monoxide with Isopropylmagnesium Bromide. W e d n e s d a y , 9.30 A . M . Johui R. Sampey. Rates of Reduction of Aromatic Nitro Compounds. Raymond M. Hanii, George S. Jamieson, and E . Emmet R.eid. SchifFs Bases Derived from Chlorovanillin. Charles D . Hurd and C. W. Bennett. Hydrazine Hydrate and Azibenzil. R. K. Nelson, J. R. Matchett, and J. B . Tindall. Acyl Derivatives of Ortho-Aminophenol. V. R. Kokatnur. Analysis of Crude Acid Chlorides in the Process of Formation. G. H. Coleman and C. R. Hauser. The Reaction of Monocliloramine with Grignard Reagents. B. H. Huntress. The Beckmann Rearrangement of Fluorenone Oximes as a N e w Preparative Method for Phenantibridones. C. S. Marvel, M. D . Helfrick, and j . P. Belsley. Methylstilfonyl Chloride as a Reagent for the Separation of Amines.
CHEMISTRY
News
Edition
13.
Marvin Actiterhof, R. C. Conaway, and Cecil E . Boord. Syntiiesis of t h e Hydrosulfides of the Simple Aliphatic Amines. W e d n e s d a y , 2.00 P . M . 14. Louis F \ Fieser. 2-Hydroxy-l,4-Anthraquinone. 15. Louis 3?. Fieser. The Tautomerlsm of Hydroxy Quinones. 16. L. Cha.s. Raiford and Garrett W. Thiessen. The Effect of Substituents in the Formation of Diphenyl Ethers. 17. Ralph C. Huston, Hubert A. Swartout, and Gladys K. Ward well. Action of Aromatic Alcohols on Aromatic Compounds in the Presence of Aluminum Chloride. V — the Benzylation of o-Cresol. 18. Ralph C. Huston and Harold W. Strickler. Action of Aromatic Alcohols on Aromatic Compounds in the Presence of Aluminum Chloride. VI—Phenylpropyl Carbinol and Phenol. 19. Ben HI. Nicolet. The Hydrolysis of fer-Butyl Chloride. Preliminary Report. 20. Raymond M . Hann, E. Emmet Reid, and George S. Jamieson. Phenyl, £-Chlorphenacyl, and £-Bromophenacyl ^Esters of Some Higher Fatty Acids. 21. W. R. Clayton and E. Emmet Reid. The Esterification of Thiodiglycol (/3,/3'-Dihydroxy Ethyl Sulfide). 22. J. A. Mieuvvland, — Daly, and Sr. M . Florentine. Preparation o f Ethylene Chloride«and Vinyl Chloride. 23. Harold Hibbert, H. S. Hill, Alan Hill, and G. Sturrock. Isomeric Cyclic Alkylidene and Acrylidene Glycerols. T h u r s d a y , 9.30 A . M . NOTE: Election of officers at 11.00 A.M. G. I. flavin, H-. C. Urey, and E. m n m e t Reid. Reaction 24. of Atomic Hydrogen with Organic Compounds. Dorothy E. Bateman and C. S. Marvel. The Structure of 25. the Hydrocarbon C^HJS Obtained by the Dehydration of Diprtenyl-^er-Butyl Carbinol. 1,2-Dialkyl Cyclo26. Francis H. Case and E . Emmet Reid. pentane Derivatives. 27. H . B. Olass and E . Emmet Reid. The Action of Sulfur o n Benzene a t 350°. 28. Harry B. )ykstra and Cecil E . Boord. T h e Synthesis of Some Olefins. 29. W. L e e Lewis and R. D . Greene. Studies in the Reactivity of tbie Methylated Sugars. I l l — T h e Action of JUilute Alkali on Tetramethyl Mannose. Studies in the Reactiv30. W. L e e Lewis and M. L. Wolfrom. ity o f the Methylated Sugars. I I — T h e Action of Dilute Alkali on Tetramethyl Glucose. 31. J. B. Conant, C. 1ST. Webb, and W. C. Mendum. The Preparation! and. Study of Tri-Alkyl Acetaldehydes. Preliminary Paper. 32. W. R. Kirner. The Effect of Structure of Organic Halides on Their R a t e of Reaction with Inorganic Halides. I I — The Bffect of t h e Methylthio Group. A N e w Vesicant. 33. Henry Gilman and F. Schulze. Organoberyllium Compounds. 34. H. D. Gibbs. Phthalic Anhydride—the Catalytic, Vapor Phase, Air Oxidation of Naphthalene.
Division o f P a i n t a n d Varnish C h e m i s t r y W. T. P E A R C E , Chairman P. B . M A R L I N G , Secretary
1. 2. 3.
Italian Gardens, Book-Cadillac Hotel W e d n e s d a y , 2.00 P . M . A . B. Miller and Edmund Claxton. T h e Atmospheric Oxidation of the Methyl and Glycol Hsters of Kleostearic Acid. M . S. -Armstrong. Stains for Use under Lacquers. K. C. B . ICirsopp and William J. Kelly. Synthetic Resins in O i l Varnishes and Nitrocellulose Lacquers. T h u r s d a y a n d Friday, 9.30 A . M . SYMPOSIUM: LACQUERS AND SOLVENTS C. R. BRAGDON,
4. 5. 6. 7. 8. 9. 10. 11.
Chairman
Bruce K. Brown. Solvent Structure and Solvent Action. F . W, Hopkins. A Comparison of Varnish and Lacquer as Wood-Finishing Materials. J . A. Bridgman. Constants of Nitrocellulose Solvents. B . G. Richardson and C. R . Sutton. A Study of the E x plosive Properties of Lacquer Solvent Vapors. Chas. D . Bogln and Carson W . Simms. Some Observations on tlhe Viscosity of Lacquers. K. J. Probeck and H. W. Battle. Observations on Actions of Pigments in Metal Primers. Allen Rogers and Clifford Banteu. Lacquer Formulation with* Especial Reference* to the tJse* of> Gumar. J . G. Davidson and E . W. Reid. Thinners for Nitrocellulose ILacqtters.
INDUSTRIAL
August 20, 1927
AND ENGINEERING
Division of Petroleum C h e m i s t r y R . R. MATTHEWS,
Chairman
F R E D W. PADGETT,
Secretary
Tuesday, 2.00 P . M . W e d n e s d a y , 9.30 A..M. a n d 2.00 P . M . Ball Room, Statler Hotel Joint Session with Industrial and Engineering Chemistry Division T h u r s d a y a n d Friday, 9.30 A . M . Henry II Room, Statler Hotel 1. H . C. Mougey. Sulfur in Gasoline from the Automobile Standpoint. 2. S. H. Diggs. A Study of t h e Effects of Sulfur in Gasoline on Wrist-Pin Corrosion in Automobiles. 3. W . F. Faragher, J. C. Morrell, and F . Comay. Thermal Decomposition of Sulfur Derivations of Hydrocarbons. 4. F . H. Morris and W. G. WTiitman. Heat Transfer for Oils and Water in Pipes. 5. R. E. Schaad and C. E. Boord. Effect of Knock Suppressing and Knock-Inducing Substances on t h e Combustion of Certain Pure Fuels. 6. W . F. Faragher, Gustav Kgloff, and J. C . Morrell. The Anti-knock Properties o f Cracked a n d Straight-Run Gasoline from Various Cnid? Oils. 7. R. Stevenson and J. A. Babor. The Determination of the Volatility of Gasoline. (Ivantern.) 8. J. C. Morrell and Gustav Hgloff. Apparatus for Fractional Distillation under Reduced Pressure. 9. J. B. Hill and H. B. Coats. Relation between Viscosity and Gravity of Petroleum Products. (Lantern.) 10. F . S. Bacon. A n Improved Apparatus for Determining the Flow Points of Lubricating Oils. 11. J. G. Ford. Evaluation o f Transformer Oils. (Lantern.) 12. A. W. Francis. The Free Energy of Some Hydrocarbons. 13. A. W. Francis. The Free Energy of Some Alcohols. 14. F . S. Bacon. Unsaturated and Molecular Weights of Commercial Lubricating Oils. Modification of Francis Method of Determination of Unsaturateds i n Oils. 15. F . J. Mechlin. An Economical Plan for Recovering Valuable Products from "Spent" Doctor and Caustic Solutions. 16. S. W. Ferris. A Precision Pipet Viscosimeter. (Lantern.) 17. H . M . Smith. The Study of a n Intermediate Base Crude.
Division of Physical a n d I n o r g a n i c C h e m i s t r y GEORGE SHANNON FORBES, Chairman VICTOR K. L A M B R , Secretary
Banquet Room, Statler Hotel Tuesday, 2.00 P . M . Joint Symposium on " T H E PRBSENT STATUS O F THE CHEMISTRY
CHEMISTRY
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17.
G. Jones and B. B. Kaplan. A N e w Apparatus for D e termining the Distribution Ratio of a Volatile Solute between Two Miscible Solvents. (10 min , Lantern.) 18. V. K. LaMer and F. H. Goldman. Activity Coefficients of Strong Electrolytes. I l l — T h e Solubility Relations of Lanthanum lodate in Aqueous Salt Solutions. (10 min., Lantern.) 19. A. R. Collett and C. L. Lazzell. Solubility Relations of the Isomeric Nitrobenzoic Acids. (10 rnin., Lantern.) 20. J. C. Michalek with W. H. Rodebush. The Effect of Intensive Drying upon Ammonium Chloride. (15 min., Lantern.) 21. D . A. Maclnnes. Differential Potentiometric Titration as a Precision Method. (10 min., Lantern.) 22. A. J. Hopkins and R. A. Beebe. The Electrometric Titration of Cupric Salt Solutions by Bases, Using the Quinhydrone Electrode. (10 min., Lantern.) T h u r s d a y , 9.30 A . M . 23. R. B . Waite with F. E. Brown. The Effects of Variations of Temperature and Pressure on the Rate of Reduction of Silver Acetate in Solution by Hydrogen. (10 min., Lantern.) 24. T. E . Warren. Dissociation Pressures of Ammonium Ortho-Phosphates. (10 min., Lantern.) 25. A. L. Ferguson and L. O. Case. A Study of the Wheatstone Bridge Method for the Measurement of Electrolytic Conduction. (15 min., Lantern.) 26. H. M. Elsey. The Conductivity of Chromic Acid Solutions before and after Electrolysis. (10 min., Lantern.) 27. D . F. Smith and C. O. Hawk. The Catalytic Decomposition of Methanol. (10 min., Lantern.) 28. A. G. Loomis and D. F. Smith. The Rate of Decomposition of Nitrogen Pentoxide at Very Low Pressures. (15 min., Lantern.) 29. B. Lewis. On the Nature of "Active Nitrogen:" The Synthesis of Ammonia from the Klements. (10 min.) Friday, 9.30 A . M . 30. G. S. Forbes and M. J. Dorcas. Self-Integrating Chemical Actinometry for Ultra-Violet Dosage or Other Specific Purposes. (10 min., Lantern.) 31. A. L. Marshall. The Photochemical Combination of H y drogen and Oxygen. (15 min., Lantern.) 32. E . P . Wightman and S. E. Sheppard. Effect of Certain Salts on Photographic Sensitivity. (10 min., Lantern.) 33. A. P. H . Trivelli. Note on a Tentative Hypothesis of the Latent Image. (15 min., Lantern.) 34. A. H . Nietz. Molecular Orientation at Surfaces of Solids. II—,The Measurements of Work of Adhesion between Solids and Liquids. (10 min., Lantern.) 35. H . B. DeVore and W. P . Davey. Preferred Orientation in Tungsten Crystals, Caused by Mechanical Working. (15 min., Lantern.) 36. J. C. Michalek and M . J. Copley. A Photo-Electric Cell Temperature Control Device. (10 min., Lantern.) 37. G. Eglofl. The Physical Constants of the Gaseous Paraffin Hydrocarbons (Methane, Ethane, Propane, Butane, and Isobutane). (15 min., Lantern.)
OF THE P R O T E I N S / ' with t h e Biological, and Leather and Gelatin Divisions. 1. P. A. Levene and Lawrence Bass. The Racemization of Gelatin. (20 min.) 2. W. D . Bancroft. Adsorption b y Proteins. (15 min.) 3. J. A. Wilson. Chemical Combination vs. Adsorption in the Acid-Gelatin Equilibrium. (15 min.) 4. A. L. Ferguson, E. K Bacon, and A . W . Schlucter. T h e Stoichiometric Character of t h e Acid-Base Combinations Division of Rubber C h e m i s t r y with Gelatin. (15 min-) 5. H. S. Simms. Electrolytic Dissociation of Ampholytes. R. P. DINSMORB, Chairman (15 min.) A. H. SMITH, Secretary 6. T. R. Briggs and — parson. Electrokinetic Potentials of Crystal Ball Room, Book-Cadillac Hotel Gelatin Diaphragms. (15 min.) W e d n e s d a y , 9.30 A . M . a n d 2.00 P M . 7. Victor Cofman. Physical Compounds vs. Chemical Compounds. (15 min.) RECLAIM SYMPOSIUM Discussion led by H. W. Weiser a n d A. W. Thomas. Meeting 1. H. A. Winkelmann and E. G. Croakrnan. Pigment Rewill be continued in morning session if necessary. inforcement of Reclaimed Rubber. W e d n e s d a y , 9.30 A . M . a n d 2.00 P . M . 2. R. E. Cartlidge and H. L. Snyder. Effect of High Sulfur vs. Low Sulfur in Vulcanizing Reclaim. 8. W. A. Felsing. The Analysis of Commercial Liquefied 3. W. W. Vogt. The Value of the Rubber Hydrocarbon in Sulfur Dioxide. (10 min., L,antera.) Reclaim. 9. R. D . Reed and J. R. Withrow. Zirconium Sulfate as a Re4. N . A. Shepard, H. F. Palmer, and G. W . Miller. Rate of agent for the Detection of Potassium. (10 min., Lantern.) Cure of Reclaimed Rubber. 10. J. W . Neckers and H. C Kremers. Observations on the 5. P . S. Shoaff. Factors in Processing Reclaimed Rubber. Rare Earths: The Separation of Cerium. (10 min.) 11. A. E . Boss and B. S. Hopkins. T h e Purification and GENERAL PAPERS Atomic Weight of Erbium. (10 min., Lantern.) 6. Bert S. Taylor and W. N . Jones. Effect of Certain Metallic 12. R. E . Kirk. Mono-Delectronators and Di-Delectronators. Salts on the Aging of a Tread Compound. (10 min., Lantern.) T h u r s d a y , 9.30 A . M . 13. Wm, Howlett Gardner a n d A. W , Browne. Behavior of the Business Meeting Halogenoid, (SCSNs^, toward t h e Halogens. (10 min., 7. W. W. Vogt. An Analysis of a Typical Angle Abrasion Lantern.) Machine. 14. L. F . Audrieth and.A. W. Browne. A N e w Interhalogenoid, 8. H . A. Winkelmann and W. N . Jones. Effect of Amphoteric Cyanogen Azido-Dithiocarbonate, CN.SCSN3. (10 min., Metallic Salts on Rubber. Lantern.) 9. D . E . Pearsall. Influence of Sulfur-Rubber Ratio on the 15. Earl C. H . Davies and H . B . Jones. Rhythmic Bands in Physical Properties of Hard Rubber. Barium Silicate Sacs, (lOjtnin., Lantern.) 10. E . C. Zimmerman and R. W . Brown. Hardness Tester for 16. A. E . Hill, and L- R.Bacon. The System: Sodium CarRubber. bonate, Sodium Bicarbonate, and Water. (10 min., {Continued on page 9) lantern.)
