MEETINGS A N D P R O G R A M S JOSEPH F. VOLKER. The Production and
and. the lead chamber Armour & Co.
R. J.
L e a t h e r Chemists 1 M e e t i n g
Prevention of Dental Caries in the Syrian Hamster. BLOCK.
Chemical
of Keratins.
Classification
Meeting-in-Mlmafure A t Northwestern The Northwestern University chapter of Phi Lambda Upsilon is sponsoring its second annual meeting-in-miniature on May 20. Graduate students of the chemistry department will present short descriptions of research done to fulfill doctoral requirements. C. C. Price, chairman of t h e chemistry department at the University of Notre Dame will be the guest speaker at the luncheon. Dr. Price, who is active in world government circles and a candidate for the Democratic nomination for U. S. Senator from Indiana, will talk on "Our Political Responsibilities." The program follows. A. VEIS.
The Interaction of Naturally
Occurring Polyelectrolytcs with Alkali Ions. F. Ozoc. Kinetics of the Reaction of 2,6-Dimethyl-4-Thiopyrone with Fhenacyl Bromides. W. HETTINGER.
Twin Calorimeters for
the Determination of the Heat Capacity of High Polymers (with motion picture). F. SUYDAM. Synthesis of Peptides Structurally Related to Penicillin. W. NEWBY.
The Effects of Acidity on
the Catalytic Hydrogenation of Benzene. R. K. BURKHARD. Some Aspects of Protein Structure. W.
HUNTSMAN.
Some
Reactions
installation at
Four full technical sessions are scheduled for the forty-sixth annual meeting of the American Leather Chemists Association. The meeting will begin on May 31 at the French Licks Springs Hotel, French Lick, Ind. and last until noon on June 2. The technical committees will meet on May 30. Technical sessions will be held on Wednesday morning and afternoon and on Thursday and Friday mornings. A symposium on stream pollution is planned for Wednesday evening. The program of papers has been arranged to include economics of the leather industry; anticipated future changes in hides and sole-leather tanning; distribution of sa'! in hides and skins; study of collagen; vegetable tannages; mechanisms of mineral tanning processes, resin-type tannages; the influence of metaphosphate on tan absorption; pasting of leather; and statistical and analytical procedures. A G A Production a n d C h e m i c a l Conference Many improvements in gas making will be discussed at the Production and Chemi-
cal Conference sponsored by the operating section of t h e American Gas Association at the Hotel New Yorker, May 22 to 24. The opening day of the conference will he given over to general sessions. Monday morning will be devoted to problems of the chemical division of the industry and G. V. McGurl, chairman of the AGA chemical committee, will preside. T. Lee Robey, coordinator of gas production research, will report on the progress made in the association's efforts to improve gas production methods under the AGA research program.
CALENDAR
OF EVENTS
American Chemical Society 118th National Meeting, Chicago, 111. Sept. 3-8, 1950. Sixth National Chemical Exposition, Chicago Section, Coliseum, Chicago, 111. Sept. 3-8. Second National Medicinal Chemistry Symposium, Notre Dame University, South Bend, Ind., June 15-17, 1950. 119th National Meeting (divided). Boston, Mass., April 1-5, 1951; Cleveland, Ohio, April 8-12, 1951. Division of Analytical Chemistry, Third Annual Summer Symposium, Ohio State University, Columbus. June 16-17. Division of Physical and Inorganic Chemistry, Symposium on Anomalies in Reaction Kinetics. University of Minnesota, Minneapolis, Minn. June 19-20.
of
Alkyl Cyclopropanes. R. DILLON. Rates of Ionization of Some Nitro Compounds. J. BiGELOW. Preparation and Reactions of Epicholesterol and Its Derivatives. B. LAMPERT.
Unique Reactions in the
Tried Hypodynes?
Benzothiophene Series.
Ion Exchange Symposium The Polytechnic Institute of Brooklyn will hold a symposium on ion exchange on May 20. It is designed to assist those who are using or studying ion exchange or are contemplating its use in lahoratory or industrial processes. The talks will tell what t h e resins are, how they act, some probable mechanisms of ion exchange reactions, and a description of some typical applications. Teachers t o V i e w Sulfuric A c i d Process Under the direction of Kenneth A. Kobe, University of Texas, the chemical engineering projects committee of the American Institute of Chemical Engineers is undertaking in the Southwest a. program under the general title "Industry Day for Teachers." Designed to give an up-todate general view of specific processes to chemical engineering teachers, t h e first of these programs will take place May 20 at Houston, where the entire day will be spent in studying sulfuric acid production. Industrial sponsors will be Consolidated Chemical Industries' contact process plant V O L U M E
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