A S S O C I A T I O N S

MEETINCS AMD PROGRAMS Physical and Inorganic and Colloid Chemistry Divisions of ACS to Hold Symposium

T h e Cornell Section ι Λ the ACS and the Depar tment ot Chemistry ot Cornell University will act as hosts (or the 1951 joint summer symposium ot the Division ot Inorganic and Physical Chemistry and the Division of Colloid Chemistry, on the subject "Complex Ions a n d Polyelectro-lytes." Each division will supervise three half-day sessions, comprising the three-day symposium to be held June 18 to 20; June 21 will be devoted to papers con­tributed for presentation before the Col­loid Division.

Due to the limitation of facilities, regis­tration will be limited to 350. It is there-tore essential for those w h o wish to ob ­tain accommodations for attending these discussions to fill in and mail t he accom­panying coupon as soon Lis possible. T h e deadline for preregistration is May 20.

Preprints of all the papers scheduled to he presented at the symposium will b e distr ibuted ( by May 2 5 ) t o all who register. Others may obtain copies by us­ing the lower half of t h e coupon. Ab­stracts of the symposium discussions and of the contr ibuted papers which will b e presented before the Colloid Division on June 21 will be distributed to the mem­bers of t h e two divisions by their respec­tive secretaries. Every effort will b e made to allow adequate time for discussions. Since these comments will he publ ished in the final record of the symposium, it is urged tha t those who wish to have their comments included prepare these in a form which can be given t o the discussion leaders at the start of thc j corresponding session.

Arrangements have heen made with Cornell University to house registrants and visitors in Balch Hall, o n e block north of the Baker Chemical Laboratory, where the meetings will be held. The dormitory facilities will become available Sunday, June 17. after 4:00 p.xi.; they must b e vacated b y Friday, June 22 , at 10:00 A . M . Registration desks will h e set up in the museum ot the Baker Chemical Labora­tory on Sunday. Upon registration, rooms will be assigned, and final programs will be distributed. Rooms wi l l cost $2.00 per night p e r person; $1.00 fo r children under 12, if t h e y occupy a room with their par­ents. N o special "ladies' program" is being planned. However, swimming, tennis, and golf facilities are available on the campus , and within a radius of 1 5 miles there are numerous state parks for picnicking, hik­ing, and swimming. One evening will he devoted to a general dinner program, and a picnic will be held during another late afternoon and evening. For further de­tails regarding preregistration and room reservations write to H. A. Scheraga; for answers to questions on preprints write to

R. K. Osterheld, Department of Chemis­try, Cornell University, I thaca, X. V.

Morning sessions will start at 9:00 A.M. , afternoon sessions at 2:00 P . M . The pro­gram follows:

MONDAY

Complex Ions—Equi l ibr ium Aspects YV. C. W A C G E N E R AND R. \V. STOUGH-

TON. Chemistry of Thorium in Aqueous Solutions. I I . Chloride Complexing as a Function of Ionic Strength.

W . K. W I L M A H T H . T h e Binuclear Peroxo Complex Compounds of Tri- and Tetraposit ive Cobalt.

P. W. AND J. C. H I N D M A N . The Cliloro Complexes of Ruthenium ( I V ) .

H. B. JONASSEN. Complexing Tend­encies of Polyamines with Metal Ions of the Transit ion Group.

Complex Ions—Kinet ic Aspects F . R. D U K E . Complexes in Oxidation-

Reduction Reaction: The Cupric Cyanide Reaction.

F . A. BASOLO, J. G. B E R G M A N , AND R. G. PEARSON. Mechanism of Substitution Reactions in Complex Ions. I . Kinetics of the Aquation and Hydrolysis of Some C-S ubsti tuted Acetatopentaamminecobal t ( I I I ) Ions.

S. S. J O N E S AND F . A. L O N G . Complex Ions from Iron and Ethylenediaminetet-raacetate: General Properties and Radio­active Exchange.

R. A. P L A N E AND H E N R Y T A U B E . The Kinetics of the Exchange of W a t e r be­tween Cr(II, .0)e + + + a n d Solvent.

TUESDAY

Aggregation Reactions in Solution And at Higher Tempera tures

The Reversible Forma­

tion ot Polymers by Cat ions in Aqueous Solution.

P. A. YAUGHAN. Anionic Polymeriza­tion.

Α. YV. LAUBENCAYEB A N D R. D. R O S E N -STEIN. Condensation in the Boric Acids and the Borates.

R. K. OSTERHELD. Polymerization and Depolymerizat ion in the Phosphatemeta-phosphate System at H i g h e r Tempera tures .

Synthetic Polyelectrolytes P. M. D O T Y AND ANDRE O I H . Light

Scattering from Charged Macromolecules. II. Polymethacrylic Acid .

F. T. W A L L AND T . J. SWOBODX. Elec­trolytic Interact ion of Nylon with Aqueous Solutions of Sodium Hydroxide .

G. E. K I M B A L L , H . S A M E L S O N AND M. C U T L E R . Viscosity and Titration Curves ot Polyacrylic Acid.

E. H. DEBXJTTS. Dis t r ibut ion of Ions in Solutions of Weak Elect rolytes .

II. M O R A W E T Z AND W . L. H U G H E S , JR . The Interaction of Prote ins with Synthetic Polyelectrolytes.

W E D N E S D A Y

Proteins F. KAHUSH. The Interact ion of Opt i ­

cally Isomeric Anionic D y e s with Bovine Serum Albumin.

I. M. K L O T Z AND P . K. BURKHARD. Specific Interactions of Bovine and Human Albumin with Organic Ions and Configura-tional Changes i n These Proteins.

J. L. O N C L E Y , E. E L L E N B O C E N , D. G I T -LIN, AND F. R. N. G U R D . Protein-Protein Interactions.

R. L. B A L D W I N , W . M . SAUNDERS, P. G. SQUIRE, AND J. \V. W I L L I A M S . Boundary Spreading in Sedimentat ion Velocity Ex­periments.

WEDNESDAY A F T E R N O O N M O R N I N G

AND THURSDAY

Ion-Exchange Resins K. S. SPIECLER AND

Electromigration in a

R. E. C O N N I C K

Fill in and mail this coupon as soon as possible

C. D. C O R Y E L L . Cat ion-Exchange

Resin. L. P. H A M M E T T A N D S. BERNHARD.

Further Studies on Catalys is of Ester Hy­drolysis by Ion Exchange Resins.

J. SCHUBERT. Ion Exchange Studies of Complex Ions.

H. A. Scheraga Department of Chemistry Cornell University Ithaca, Ν. Υ.

"" I plan to at tend the joint symposium on C O M P L E X IONS AND P O L Y E L I K I ROI.YTKS. .lune ί to 21. Please reserve for me the following accommodations:

Double roomis") no. .

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I wil l a r r i v e : D a t e

I p l a n to l e a v e : D a t e .

~Z] I a m a n A C S m e m b e r . I a m e n c l o s i n g S4.f>0

I a m no t a n A C S m e i n o u r . I a m e n c l o s i n g $7

N a m e

A d d r e s s

O r g a n i z a t i o n . .

' 7 J I do no t p l a n t o a t t e n d t h e j o i n t s y m p o s i u m . P l e a s e s e n d me a set o f p r e p r i n t s . I a m e n c l o s i n g $2.50 C D S3.00 Γ~> SO.OO CD

50 for registration and |>n pr in ts .

N O T E : Preprint fees are : S2.50 for all members of the sponsoring divisions who do not a ' t end S3.00 for all ACS members who are not members of these divisons $6.00 for those who are not ACS members.

Registration fees CS2.50 for ACS members; S5.00 for nonmembers) will be refunded if notification of nonattendance is given before June 1, 1951. Sale of preprints i<= final.

1758 C H E M I C A L A N D E N G I N E E R I N G N E W S

A. W . A D A M S O N AND J . J. G R O S S M A N . T h e Diffusion Process for Organoli te Ex­changers .

W. J. AHCERSINGER, J R . , AND A. W . D A V I D S O N . Exper imenta l Factors and Activi ty Coefficients in Ion Exchange Equi l ibr ia .

J. T . C L A R K E , J. A. M A R I N S K Y , W. JUDA, N \ W . ROSENBERG, AND S. A L E X A N D E R . Elect rochemical Propert ies of Permionic Membranes .

R. E . K R E S S M A N . Ion Exchange Separa­t ions Based upon Ionic Size.

G. E . BOYD. T h e Gibbs-Donnan Model for Ionic and Solvent Equil ibria with Or­gan ic Ion Exchange Polymers.

THURSDAY M O R N I N G AND A F T E R N O O N

Con t r i bu t ed Papers

W. O. M I L L I G A N AND A. L. D R A P E R . I sohar ic and Isothermal Studies in the Sys tem Soap-Water .

R. D . V O L D , J. D. G R A N D I N E , AND H. S C H O T T . Character is t ic X-Ray Spectrom­e t e r Pat terns of Solid Soap Modifications.

C. R. S INGLETERRY AND L O R R A I N E A. W E I N B E R G E R . T h e Size of Soap Micelles i n Benzene from Osmotic Pressure and from the Depolarization of Fluorescence.

E. A. H A U S E R AND D. S. LEBF.AU. T h e Sur face Structure and Properties of Col­lo idal Silica and Alumina.

L. PI. REYERSON AND J. M. I IONIC;. Ad­sorpt ion of Gases on Rutile at Low Rela­t i v e Pressures.

W. H E L L E R AND H. O P P E N H E I M F . H . "Combined Investigations of Optical and Mechanica l Strain in Polymer Sheets.

A. J. B U T T AND E . Â. HAUSER. T h e Impor t ance of Urinary Colloids in Kidney-S tone Prevention.

Florida Section Holds Meeiing-in-Miniature

T h e Florida Section of the ACS will liold a Meet ing-in-Miniature at the Ange-"bilt Hotel in Or lando May 4 and 5. P lan t tours will b e g i n at 1 P . M . Fr iday , and at 6 :30 P . M . t h e r e will be a Smorgas-"bord Supper at D u b s d r e a d Country Club, and a business meet ing there at 8 o'clock. T h e Saturday program includes exhibits and displays of "Florida Chemist ry" and a ladies' program. At the banque t Satur­day evening the featured speaker is Ot to Eisenschiml, who will talk on "The Art of Sell ing Chemical Knowledge ." T h e fol­lowing technical papers will be given Saturday , beginning a t 9 :00 A . M . :

F. N. M C M I L L A N . Some Florida Food and Drug Facts .

S. G. G I L B E R T AND C L A R E M. G R O P P . Some Characteristics of Plant Oxidative Enzvmes .

E. R. H O L Z AND T. W. STEARNS. Some Spec t ropho tomet ry Studies on Honey.

L. J. S W I F T AND C. W. H U S K I N S . Liqides of Florida Orange Juice.

M A R Y L O I S JUNG AND F. E . R A Y . A Basis for the Selection of Compounds Likely to Produce Gastric Cancer.

GLADYS E. K I E L Y , H . R. G U T M A X N , AND F . E. RAY. T h e Metabolism of 2-Amino-fluorene in Rats on Normal and Riboflavin-Deficient Diets.

A. H. G R O P P . Uses of the Polarograph in Research and Control.

R. D. W A L K E R , J R . , AND J. E . H A W K I N S . Ultraviolet Absorpt ion Spect rophotometry in the Chemistry of t he Terpenes .

R. B. E L L I S . Character izat ion of Porous Glass as a Chromatographic Adsorbent .

I I . C. BEARD. A Comparison of the Stick Metal Electrodes of Antimony and Bismuth.

W . N. S I M P S O N . Determinat ion of Cal­cium in the Presence of Phosphates .

E R N E S T G R U N W A L D . T h e Solvent De­pendence of Specific Rates Trea ted as a Problem in Activity Coefficients.

P A U L T A R R A N T . T h e Preparat ion and Reaction of Some Fluoroethers .

II . M. WALBORSKY AND D. R. H O W T O N . A General Synthesis of Straight-Chain Mono-enoic F a t t y Acids.

W E R N E R H E R Z AND J. L. ROGERS. Man-nich Bases of N-Subst i tu ted Pyrroles.

C. I. MlCHAELIS AND C. B. BUTLER. Some Reactions of /3-Nitroamines.

R. L. G O E T T E AND G. B. BUTLER. Prep­aration and Polymerization of Unsaturated Quaternary Ammonium Compounds Con­taining the β-Vinyloxylethyl Group.

JACK E I C H I N G E R . T h e Competit ive Lec-tu ie-Quiz.

E . W. P H E L A N . Improving Examination Questions.

C h i c a g o S t u d e n t Sympos ium

T h e Second Annual Symposium spon­sored by the Chicago Region Coordinat­ing Committee of Student Affiliates of the ACS will be held May 12 at Roosevelt

A C S L o c a l Sec t ions PLACE

Alabama, YWCA, Birmingham Auburn, Alabama Polytechnic

Institute California, Room 100, Lewis

Hall, University of California California ( Biochemical and

Organic Group ) California (Educational Group)

California (Industrial Group) Central North Carolina, Guilford

College, Guilford, N. C. Central Ohio Valley, Ironton,

Ohio Central Pennsylvania, 119 Os­

mond Laboratory, Pennsylvania State College

Cinninnati, Engineering Society Headquarters

Connecticut Valley, Engineers Bldg., University of Connecti­cut, Storrs

Dayton

Georgia, Milledgeville

Indiana, Gold Room, Antlers Hotel (student meeting)

Indiana, Room 131, Butler Uni­versity, Indianapolis

Kalamazoo

Kanawha Valley, North Charles­ton Recreation Center

Lexington, Kastle Hall, Univer­sity of Kentucky

Louisville, Jefferson Room, Uni­versity of Louisville

Michigan State College, Kedzie Laboratory, East Lansing

Mohave Desert, U. S. Naval Ord­nance Test Station, China Lake, Calif.

New Haven, Sterling Chemistry Laboratory. Yale University

New York, Hotel Statler (Sym­posium on Rocket Fuels )

North Jersey (Central Subsec­tion) Military Park Hotel, Newark

Northeast Tennessee, Tennessee Eastman Corp., Kingsport

Northeastern, Harvard Club Purdue, Purdue University,

Lafayette, Ind. Rhode Island, Metcalf Auditor­

ium, Brown University, Provi­dence

San Diego, Consolidated Cafe­teria, 3300 Pacific Highway

Southern Indiana, Chemistry Bldg., Indiana University, Bloomington

St. Joseph Valley, South Bend, Ind.

St. Louis Kingsway Hotel Toledo, Room 1, Toledo Uni­

versity Trenton, Glendale Tavern

University of Illinois, Urbana

University of Michigan, Ann Ar­bor

Upper Ohio Valley, Athens, Ohio

Virginia Blue Ridge, Bedford Wabash Valley, Science Bldg.,

Indiana State Teachers College, Torre Haute

Washington, University of Mary­land, College Park, Md. ( Di­visional Meeting)

Western Carolinas, Asheville, N. C.

Western Vermont, Middlebury College, Middlebury

7 A. D. Melaven

<S A. D. Melaven

14 Charles V. Berger

A. K. Balls H. Benninghoff

IL L. Wampner

10 Otto Eisenschiml

7 II. B. Hass

2 Charles Maresh 9 H. B. Hass

12 C. W. Mason

8 Arthur B. Lamb

5 James T. Mackenzie

9 J. C. Bailar, Jr.

10 H. B. Hass

1 0 James Bonner

8 H. B. Hass

10 W. A. Noyés, Jr.

9 W. A. Noyés, Jr.

1 1 James Bonner

7 D. H. Templeton

10 C. W. Mason

11 P. F. Winternitz L. G. Bonner A. J. Nerad

7 Leo Shedlovsky

11 A D . Melaven

10 7 W. A. Noyés. Jr.

11 C. W. Mason

9 D. H. Templeton

8 W. A. Noyés, Jr.

7 James Bonner

7 Donald Powers S James Bonner

8 Charles Bicking

7 Melvin S. Newman

9 James Bonner

8 C. A. Randall

12 Otto Eisenschiml 1 1 H. B. Hass

1 0 Alden H. Emery

9 Otto Eisenschiml

8 C. W. Mason

SUBJECT

Rhenium Rhenium

Production ot Aromatics by the Platforming Process

Stoichiometric Inhibition of Fln-zymes

Technical Employees for Indus­try from Two-Year College

Chemists in the Paint Industry-Present Day Problems of Our

Profession The Newer Chemistry of Ace­

tylene Fluorescent Microscopy

The Newer Chemisti tylene

Chemical Microscopy

(Recipient, Austin M. Patterson Award )

(Herty Medal Recipient )

Choosing a Job

The Newer Chemistry of Ace­tylene

The Chemical Control of Plant Growth

The Newer Chemistry' ot Ace­tylene

Organic Photochemistry

International Chemistry

The Chemical Control of Plant Growth

Characterization of New Radio­active Isotopes

Chemical Microscopy

Liquid Rocket Propellants Solid. Fuels Rocket Fuels of the Future Properties of Foams and Films

from Aqueous Solutions

Rhenium

(James F. Norris Award) International Chemistry

Chemical Microscopy

Characterization of New Radio­active Tsotopes

Organic Photochemistry

The Chemical Control of Plant Growth

Chemistry of Cosmetics The Chemical Control of Plant

Growth Statistical Methods in Chemical

Development New Reactions of n-Nitroso-2-

oxazolidones The Chemical Control of Plant

Growth Nuclear Chemistry in Nature-

Cosmic Ravs Problems of Our Profession The Newer Chemistrv of Ace­

tylene

The ACS Program in Outline

Present Day Problems of Our Profession

Chemical Microscopy

V O L U M E 2 9, N O . 1 8 A P R I L 3 0, 1 9 5 1 1759

MEETINGS AND PROGRAMS

College in Sinha Hall, Room 785. The meeting will follow the plan of the na­tional meetings, each speaker being allowed 20 minutes. Admittance is free.

AYork for this symposium has been han­dled entirely by the student affiliates, in­cluding original research and work on the symposium committee. The education committee of the Chicago Section has ap­proved three awards lor outstanding papers.

Forest Products Research Society Holds Meeting and Industry Show

T h e 1951 annual meeting and Interna­tional Industry Show of the Forest Prod-nets Research Society will be held at Con­vention Hall in Philadelphia May 7 to 13. This is a step in coordination with other woodworking technical societies. Those who will participate are the American Paper and Pulp Association, American So­ciety of Mechanical Engineers (wood in­dustries division), American Society for Testing Materials (Committee D-7 on W o o d ) , American Wood Preservers As­sociation, Association of Manufacturers of Woodworking Machinery, the Society of American Foresters, Northeastern Wood Utilization Council, and the Society of the Plastics Industry.

Paint and Varnish Clubs Announce Spring Meeting

T h e spring meeting of the Federation of Paint and Varnish Production Clubs will be held at the Book-Cadillac Hotel in Detroit May 25 and 26. The Detroit Paint and Varnish Production Club has ar­ranged a concurrent meeting and all federation officers and members in De­troit for the federation meeting are in­vited to the local meeting Friday evening.

Conclave for New England Chemistry Teachers

The New England Association of Chem­istry Teachers, a NSTA affiliate, is holding its 13th Summer Conference a t Rhode Island State College, Kingston, Aug. 20 to 2 5 . The varied program of about 15 speakers will include a symposium on teaching of chemistry with emphasis on science in general education and a work­shop on pupil participation in chemical demonstrations as a classroom project.

CALENDAR OF EVENTS American Chemical Society Colorado Section. 12th National Organic

Symposium, Denver, Colo., June 12-15. Diamond Jubilee Meeting 120th national.

New York City, Sept. .3-7, 1951. Other Organizations International Congress of Pure and Ap­

plied chemistry, Xll th . New York Citv, Sept. 10-13, 1951.

International Union of Pure and Applied Chemistry. XVIth Conference. New York City, Sept. 8-9, 1951; Washing­ton, D. C , Sept. 14-15, 1951.

1760

Program of Gordon Research Of the AAAS Announced

The Gordon Research Conferences, sponsored by the AAAS, for 1951, will he held from June 18 to Aug. 31 at Colby Jun­ior College, New London, N. II., and New Hampton School, New Hampton, N. II.

Purpose The conferences were established to

stimulate research in universities, research foundations, and industrial laboratories. This purpose is achieved by an informal t\pe of meeting consisting of the sched­uled lectures and free discussion groups. Sufficient time is available to stimulate informal discussions. Meetings are held in the morning and in the evening, Mon­day through Friday, with the exception of Friday evening. Afternoons are avail­able for recreation, reading, resting, or par­ticipation in discussion groups.

The purpose of the program is not to review the known fields of chemistry, but primarily to bring experts up to date as to the latest developments, analyze the significance of these developments, and to provoke suggestions as to the underly­ing theories and profitable methods of ap­proach for making new progress. In order to protect individual rights and to pro­mote discussion, it is an established re­quirement of each conference that all in­formation presented is not to be used without specific authorization of the indi­vidual making the contribution, whether in formal presentation or in discussion. Scientific publications are not prepared as emanating from the conferences.

Registration and Reservations Individuals interested in attending the

conferences are requested to send in their applications to the director on or before May 15. Each applicant must state the institution or company with which he is associated and the type of work in which he is most interested. Attendance at each conference is limited to 100.

The director will submit the names of those requesting attendance to the con­ference committee for each conference! This committee will review the names and select the members in an effort to dis­tribute the requests as widely as possible among the various institutions and labora­tories represented. T h e names selected will b e returned by the conference com­mittee to the director, who will notify those accepted as soon as possible. A registra­tion card will be mailed with the notice of selection. Advance registration by mail for each conference is required. On re­ceipt of the completed registration card and a deposit of $25 made payable to the Cordon Research Conferences, AAAS, registration will be completed. It is hoped that it will be possible to maintain the same rates for room and meals as last year, namely, $2.50 per night per person in a double room with single beds; $3.00 per night per person in a single room; $3.50

C H E M I C A L

Conferences

per night per person in a single or double room with private bath. Meals served in the dining room were at the rate of $5.75 per day per person. Economic conditions may require these rates to be revised. A definite statement will be sent with the registration cards to each applicant. Mem­bers attending a conference are expected to live at the conference. If special cir­cumstances warrant living elsewhere, a charge of $1.00 per day will be made to assist with the financial support of the conferences. The special reduction of 75 cents per day to members attending a conference at personal expense has been discontinued by the management com­mittee.

A special fund is provided each year by the management committee from the registration fees to be used to assist academic and government research men or women, who have been invited to attend a Gordon Research Conference and who are not able to attend without serious financial sacrifices. This fund is pro­vided with the object of increasing the participation of academic and government research men or women in the confer­ences. It is limited to individuals who have been invited to at tend the confer­ences because of the significant contribu­tions they may be able to make, and who will be available for participation in the discussions during the four and one half days of the conference.

Accommodations are available for a limited number of women to attend each conference, also for wives who wish to accompany their husbands. All such re­quests should be made at the time of the request for attendance, because these lim­ited accommodations will be assigned in the order that specific requests are re­ceived. Children under eight years of age cannot be accommodated at the Colby Junior College. Children four years of age and older can be accommodated at the New Hampton School. Rooms are available at several inns and hotels in both New London and New Hampton if reservations are made in advance. In­formation on these inns and hotels will be supplied by the director on request. No dogs or other animals will be permitted in the dormitories.

Requests for attendance at the confer­ences or for any additional information should be addressed to W. George Parks, Director, Department of Chemistry, Uni­versity of Rhode Island, Kingston, R. I. From June 15 to Sept. 1, 1951, mail should be addressed to Colby Junior Col­lege, New London, Ν. Η.

Program Colby Junior College, New London, Ν. Η.

CATALYSIS Otto Beeck Memorial Conference

A. FARKAS, chairman R. C. HANSFORD, vice chairman

A N D E N G I N E E R I N G N E W S

MEETINGS AND PROGRAMS

June IS II. S. TAYLOR. Evaporated Films and

Technical Catalysts. B. A. FHIES. The liydroforming Reac­

tion: Studies with Carbon-labeled Methylcyclohexane.

P. \V. SELWOUU. The Structure and Catalytic Activity of Some Amorphous Solids.

June 19 H. M. JIULBUHT. Electronic Structure

and Properties of Oxidation and I ly-drogenation Catalysts.

\Y. A. W E Y L . Surlacc Chemistry and i Icterogeneous Catalysis.

June 20 G. L. SIMAHD. Studies on Vanadium

Oxides as Oxidation Catalysts. W. J. KiRKi'ATHiCK. The Mechanism ol

Oxidation of Sulfur Dioxide over Vanadium Pentoxide-Silica-Potassium Pyrosulfate Catalyst.

F. G. ( J A I ' E T T A . The Isomerization of Saturated Hydrocarbons by Hydro-genation-Cracking Catalysts.

June 21 R. P. EISCHENS. Isotopic Exchange Re­

actions in the Study of Surface Prop­erties of Iron Catalysts.

L. J. E. HOFEH. The Mechanism of the Carburization of Iron.

R. B. ANDERSON. The Preparation of Nitride, Carbonitride and Carbide of Iron and Their Behavior in the Fischer-Tropsch Synthesis.

II. C. ECKSTROM. Catalyst Composition in Hydrocarbon Synthesis.

June 22 Round Table Discussion.

PETROLEUM

R. W. SCHIESSLEH, chairman E. C. HUGHES, vice chairman

June 25 V. HAENSEL. Platforming of Pure Hy­

drocarbons. J. S. BALL. Sulfur Compounds in Pe­

troleum.

June 26 R. L. BURWELL, JR. Action of Sulfuric

and Chlorosulfonic Acids on Hydro­carbons.

H. L. L O C H T E . Nitrogen and Oxygen Compounds in Petroleum.

June 27 H. PINES. Mechanism of Isomerization

of Cycloparafrms. R. A. VAN NORDSTRAND. The Structure

of Petroleum Waxes.

June 28 B. L. EVERING. Hydrocarbon Isomeriza­

tion Using Aluminum Chloride and Sulfuric Acid Catalysts.

(Evening session to be announced) .

June 29 (To be announced)

ELASTOMERS

A. W. MEYER, chairman J. D. D ' I A N N I , vice chairman

July 2 Monomers and Polymerization Condi­

tions. F. R. MAYO. Discussion. MAURICE MORTON. Quantitative Studies

of Emulsion Polymerization. Polymerization Conditions. Round Table Discussion—F. R. MAYO,

Leader.

July 3 Polymer Structure and Composition vs.

Physical Properties and Performance in Service.

P. J. FLORY, A. W. MEYLH et al. Rela­tionships Between Polymer Structure and Properties.

\V. O. BAKLH. Mechanical Properties ol Molecules in Solution.

T. W. D E W I T T . Dynamic Behavior of Poi\ isobutylcne as a Function of Frequency and Température.

R. A. MARVIN. Nonlinear Aspects of Dynamic Properties of Elastomers.

S. D. G E I I M A N . Effect of Compounding Variables on Dynamic Properties.

J. W. LISKA. Correlations of Dynamic-Properties with Service Performance.

July 4 Mechanism of Reinforcement. \V. R. S M IT H AND R. L . ΖΑΓΡ, Discus­

sion. JOHN REHNER, JR. Thermodynamics of

Filler Reinforcement. B. A. MHOWCA. Study of Reinforce­

ment by Nuclear Magnetism. Ε . Μ. DANNENBERG. Polymer Structure

and Response to Reinforcement. July 5

Vulcanization Reactions. DAVID CRAIG. Discussion. R. L. Z A P P . The Stoichiometry of Vul­

canization. GEOFFREY G E E . The Present State of

Knowledge in the Field of Sulfur Vul­canization.

DAVID CRAIG. New Data Concerning TMTD and Sulfur Vulcanization — Effects of Hydrogen Sulfide.

Aging Phenomena. B. S. BIGGS. Discussion. J. CRABTREE. Rubber and the Ozone

Effects. A. V. TOBOLSKY. Some Aspects of

Physical and Chemical Changes Oc­curring during Degradation of Elasto­mers.

July 6 Aging Phenomena (Continued) . J. R. SHELTON. Oxygen Absorption

Studies on Rubber and Related Mate­rials.

Silicone Elastomers. E. G. ROCHOW et al Discussion.

July 8 8:00 P . M . . Public Lecture. Subject and

speaker to be announced. POLYMERS

TURNER ALFREY, J R . , chairman P . J. FLORY, vice chairman

July 9 H. MARK. Survey of Advances during

the Last Year. W . O. KENYON. Chemistry of Derived

Polymers of the Vinyl Series. July 10 '

W . Τ. M I L L E R . Fluoropolymers. Ε . Μ. FETTES. Structure and Properties

of Polysiilfides. July 11

G. B. B. M. SUTHERLAND. The Use of Infrared Spectroscopy in the Study of High Polymers.

R. S. MARVIN. Report on XBS Dynamic-Testing Program.

B. M A X W E L L . Tensile Impact Prop­erties of Polymers.

July 12 R. S. SPENCER. Fundamental Analysis

of Injection Molding. H. M. SPURLIN AND W . H. MARKWOOD.

Residual Stresses and Strains in Molded Plastics.

July 13 S. G. COHEN AND H. H A A S . Structure

and Properties of Cellulose Ethers.

EXT1LES J. II. BHANT, chairman

\Y. J. HAMBUHCHK. vice chairman July 16

T. \V. GEORGE. Localized Plastic Flow­ing in Filamentous Solids.

L Y M A N FOUKT. Obtaining and Measur­ing Luster in Cotton.

July 17 E U G E N E PACSU. A Critical Discussion

of the Structural Problem ol Cellulose. \V. E. ROSEVEAHE. The Structure and

Reactivity of Cellulose. July IS

L. P. HKIUUNCTON. The Physiology of Clothing.

J. R. WHINEIELD. Terylcne.

July 19 M I L T O N PLATT. Some Factors Affecting

the Translation of Fiber Properties into Yarn Systems.

R. G. II. Siu. Practical Implications of Studies on the Biochemical Mecha­nism of Cellulose Breakdown by Mi­croorganisms.

July 20 J A M E S W A K E L I N AND HERBERT H A L L E R .

Research Studies and Processing Trials on Various Wools.

July 22 8:00 P .M. , Public Lecture. Subject and

speaker to be announced.

CORROSION F. W. F INK, chairman

J. M. PEARSON, vice chairman Tentative Program

July 23 to 27 Effect of Minor Constituents on the

Corrosion Mechanism Symposia. HAROLD ROBINSON. Light Alloys. C. L. BULOW. Copper-Base Alloys. C. P. LARRABEE. Low-Alloy Steels. Ε. Μ. M A H L A . Stainless Steels. Summary. R. B. HOXENG. T H O M A S MAY. Effect of Nickel as a

Minor Constituent on Corrosion. JULIUS HARWOOD. Stress Corrosion and

Minor Constituents. Research Papers. A. H. G R O P P . Polarography in Corro­

sion. 1,. HOLZWORTH. Solid Solubilities Ef­

fects and Knife-Line Corrosion of Stabilized 18 C r - 8 Ni Steels.

M I L T O N STERN. Corrosion of Aluminum Alloys in Carbon Tetrachloride.

BRUCE" DUNNINGTON. A Metallographic Study of High-Temperature Oxidation (if Iron.

INSTRUMENTATION II. \V. WASHBURN, chairman I IOWAHD CARY, vice chairman

July 30 VAN ZANDT W I L L I A M S . Recent Ad­

vances in Infrared Instrumentation. R. C. MELLORS. Microspectropho-

tometry. BRUCE BILLINGS. Interference Filter

Spectroscopy. July 31

J. W. FORREST. Refractometry. J O H N STRONG. Instrument Art and Ex­

perimental Science. G. W. D O W N S . Magnetic Amplifiers.

V O L U M E 9 9, N O . 18 . » > A P R I L 3 0, 1 9 5 1 1761

MEETINGS A N D P R O G R A M S

Aug. 1 P. W. SELWOOD. Magnetic Measure­

ments in Physical Chemistry. \V. A. WILDIIACK. Instrumentation Re­

search at the Bureau of Standards. E. C. M I L L E H . Process Control Instru­

mentation. Any

JOHN H I P P L E . Mass Spectrometry of Solids.

Speaker to be announced. Automatic Mass Spectrometer Process Control.

Speaker to be announced. Mass Spec­trometer for Aqueous Samples.

Aug. 3 Speaker to be announced. Microwave

Refractometry. Speaker to be announced. Neutron

Spectroscopy.

F O O D AND NUTRITION B. L. O S E R , chairman

Z. I. KERTESZ, vice chairman Aug. β

Antibiotics as Food Preservatives. H. S. O L C O T T . Functional Role of An­

tibiotics in Food Processing. E. J. C A M E R O N . Criteria of Accepta­

bility for Antibiotics in Food Process­ing.

Antibiotics as Nutrients. J A M E S M C C I N N I S . The Effect of Anti­

biotics on Animal Growth, Nutritional Requirements, and Intestinal Micro­flora.

D A M O N CATRON. Effects of Antibiotics in Swine Nutrition.

Aug. 7 Therapeut ic Nutrition. H E R B E R T POLLACK. The Increased

Metabolic Demands Induced by In­jury Response and the Modification of Therapeut ic Diets to Satisfy These Requirements.

S. M. LEVENSON. Some Metabolic and Nutritional Problems Associated with Thermal and Radiation Injury.

S. C. W E R N E R . A Clinical Study of the "Stress" Response to Operation, Trauma and Disease, and Some Con­sequent Parenteral Nutritional Con­siderations.

F. L. E N G E L . Experimental Studies on the Relation of the Adrenal Cortex to the Metabolic Reaction to Injury.

Aug. 8 Health Aspects of Exposure to Radio­

activity. Η. Ε. SKIPPER. Hazards Involved in

Investigations with C u . L. W. TuTTLE. T h e Question of Radio­

active Contamination of Foods. Marine Nutrition. D. L. Fox. T h e Chemical Nature ,

Measurement and Distribution of Marine Colloidal Matter and Its Role in the Nutrition of Animals.

A. M. PHILLIPS , JR. The Nutrition of Fish with Particular Reference to Vitamin Requirement and Carbohy­drate Utilization.

Aug. 9 Geriatric Nutrition. A. A. ALBANESE AND R. A. HIGGONS.

Protein Requirements of Old Age. AGNES F A Y MORGAN. Caloric Require­

ments of Old Age. T. S. H A M I L T O N . Calcium Utilization

in Early and Late Adult Life. R. G. HOSKINS. Physiological and En­

docrinological Aspects of Aging. Aug. 10

Chemistry and Metabolism of Poly­saccharides.

R. W . K E R R . The Action of Amylases on Starch.

W. L . BLOOAÎ. The Intravenous Injec­tion of Polysaccharides.

Aug. 12 8:00 P . M . , Public Lecture. Subject and

speaker to be announced.

VITAMINS AND M E T A B O L I S M

( Preliminary ) \V. J. DARBY, chairman

GLADYS A. E M E R S O N , vice chairman Aug. 13

A. F . MORGAN. 'Adrenal , Pantothenic Acid, and Riboflavin Relationships.

ROY H E R T Z . The Endocrine Aspects of the Avidin-Biotin Problem.

C H A R L E S MAY'. Relationship of Ascorbic-Acid to Metabolism of Folic Acid.

J. II. BURCHENAL. Studies of Aminop-terin and Citrovorum Factor in trie Human .

Aug. 14 E Z R A G R E E N S P A N AND Ε. Β. SCHOEN-

BACH. Aminopterin and Citrovorum Formation.

V I N C E N T DU VIGNEAUD. Transmethyla­tion and Biological Synthesis of Labile Methyl Groups.

D. B. SPRINSON. Some Aspects of the Formation of Methvl Groups.

Aug. 15 J. LOOSLI . Role of Vitamin Ri- and

Cobalt in Ruminants. Ε. Ε. BARTLEY. Antibiotics in Calf Nu­

trition. F . L I P M A N N . Chemistry of Coen­

zyme A. V. H. C H E L D E L I N AND T. E. KING.

Chemistry of Bound Pantothenic Acid. Aug. 16

E. E. S N E L L . Purification, Synthesis and Biological Activity of Pantethine and Related Forms of the Lactoba­cillus bulgarictis Factor.

F. C. STEWARD. Coconut Milk Factor. M A R Y QUAIKK AND P. L. I IAHRIS. Vita­

min Ε in Relation to Acute Physio­logic Stress.

Aug. 17 R. W. VILTER. Deso \yp \ ridoxine-in-

dnced Pyridoxine Deficiency in Man. J. F . RINEHAHT. Pathology of Pyridox­

ine Deficiencv. Aug. 19

8:00 P . M . . Public Lecture. Subject and speaker to he announced.

M E D I C I N A L C H E M I S T R Y O T T O K. BEHHENS, chairman

C. A. W I N T E R , vice chairman Aug. 20

R. E. O L S O N . T h e En/.vmology of the Normal and Fail ing Heart .

R E N E YVEGRIA. Pharmacology of Cor­onary Drugs.

R. W. W I L K I N S . Etiology of Hyperten­sion: A Survey of Current Theories.

G. A. PEHERA. Criteria for Evaluation of Hvpertensive Vascular Disease and Its Treatment .

Aug. 21 J O S E F FRIETD. The Chemistry of the

Veratrum Alkaloids. S. B. D A V I S . Control of Renal Blood

F low: An Approach to the Chemo­therapy of Hypertension.

MARK NICKERSON. The Pharmacology of Antihypertensive Drugs.

W. C. H U E P E K . T h e Etiologic Factors and Causative Mechanisms in Arte­riosclerosis.

Aug. 22 J. W . GOFMAN AND FRANK LlNDGREN.

The Role of Lipoproteins in Athero­

sclerosis with Comments o n the Effect of Diet and Various D r u g Agents on the Blood Lipoprotein Levels.

JLTLIUS P O M E R A N Z E . The Effect of Therapeutic Agents on Sexum L ip ides and Atherosclerosis.

Κ. Η. BEYER. T h e Relationship o f S t ruc­ture to the Inhibi tory Effects o f C o m ­pounds on Renal Transport M e c h a ­nisms.

W . P. BOGER. Clinical Status of Agents Influencing Conjugative ^Mechanisms and Renal T u b u l a r Secretion.

Aug. 23 K. R. UNNA. Recent Advances in the

Pharmacology of the Myoneural J u n c ­tion.

A. P. RICHARDSON. The Pharmacology of Drugs Affecting Synaptic T r a n s ­mission.

A. E. W I L H E L M I . Chemical Invest iga­tions on the Anterior Pituitary.

V I N C E N T nu ^ I G N E A U D . Chemica l In­vestigations on the Poster iorPi tui tarv.

Aug. 24 W . J. HAINES. Studies on the Biosyn­

thesis of Adrenal Cortex PTorinones. \V. W . U M B R E I T . Relation of the

Adrenal Cortex to Tissue E n z y m e s , with Special Reference to Cortisone.

C A N C E R M. J. S H E A R , chairman

G. B. M I D E R , vice chairman. Aug. 27 to 31

General Subjects: Components of T u m o r Cells, Mechanism of Tumor G e n e s i s , Progress in Chemotherapy, P o l y s a c ­charides.

( Speakers and detailed program will b e announced later. )

Program New Hampton School, New Hampton , N. PI.

O R G A N I C COATINTCS R. H. KIENLE: , chairman

R. W. Q U A R L E S , vice chairman J u n e 18

G. M. P O W E L L . Coatings from O r g a n o ­sol and Plastisol Dispersions.

D . TODD. Some Rheologica.1 Aspects of Vinvl Plastisols.

June 19 O . R. M C I N T I R E . Coatings Proper t ies

of Synthetic Latices. W . BOSCH. Coat ings from Styrene-Buta -

diene-Drying Oil Emulsions. J u n e 20

J. D. FERRY. Properties o f F i lms and Coatings of Biological Origin .

R. G R I N S F E L D E R . Strength, of Surface Coatings.

June 21 T . W . D A K I N . Electrical \leasi_irements

of Organic Films and Their I n t e r p r e ­tation.

S. G U S M A N . Studies of t h e Mechanism of Crater Formation in Baked Surface Coatings.

June 22 S. W. R E I N H A R T . Theories of A d h e s i o n .

COAL C. D. C R E E L M A N , chairman

June 25-29 . General Prograiia. Fundamental Research on Composit ion,

Properties, and Reactions. MICROBIOLOGICAL

D E T E R I O R A T I O N J. L E U T R I T Z , chairman

G. A. G R E A T H O U S E , vice chairman

1762 C H E M I C A L A N D E N G I N E E R I N G N E W S

MEETINGS A N D P R O G R A M S

July 2 Wood and Paper.

July 3 Textiles and Cordage. Leather . Lacquers , Paints , and Varnishes.

July 4 Rubber , Resins, Plastics, \ \ axes, e t c . Chemical Consti tution and Biological

Effect. July 5

Organisms and Their Metabolism. Preservatives and Fungicides.

July 6 Round T a b l e Discussion on Govern­

ment Specifications tor Fungus and Moistureproofing.

(Speakers and detailed program will be announced later. )

C H E M I S T R Y A N D PHYSICS O F M E T A L S

C A R L W A C N E H , chair man R U D O L P H SPLISEH, vice chairman

July 9 F . O. KOKNK; . Some General Fea tu res

of the Thermodynamics of Surface Layers.

J. G. K I R K W O O D AND F . P. B U F F . T h e Statistical Mechanical Theory of Sur ­face Tension.

H. U D I X . Surface Energy of Solid Metals.

C J. C A L B I C K . The Exploration of the Structure of Surfaces and Interfaces with the Aid of the Electron Micro­scope.

July 10 C. H E R R I N G . The Atomistic Theory of

Metallic Surfaces. L. A P K E R . Photoelectric Emission from

Solid Surfaces. R. E . H O F F M A N . Surface Diffusion. A. T. G W A T H M E Y . Study of Surface

Chemist ry with the Aid of Single Crystals.

July 11 G. H A L S E Y . Adsorption on Metal l ic

Surfaces. A. W H E E L E R . Chemical Reactions on

Metallic Surfaces. R. G O M E R . The Kinetics of Nickel

Carbonyl Format ion. G. D E R G E . Reaction Mechanism at

Liquid Slag Iron Interfaces. July 12

D. C. G R A H A M E . T h e Role of Cat ions and Anions in the Electrolytic D o u b l e Layer.

M. T. S I M N A D . Local Cell Action and Surface Reactions of Metals in Solu­tions.

R. L. F U L L M A N . Interface E n e r g y of Metals.

July 13 D. T U R N B U L L . Xucleation and Crystal

Growth .

ION EXCHANGE F. C. N A C H O D , chairman

K. A. K R A U S , vice chairman July 16

R. WHEATON, R. KUNIN, W. P. UTER-MOHLEN, E . B. TOOPER, T. R. E . K R E S S M A N , AND Β. Ν. D I C K I N S O N . Round T a b l e Discussion on N e w Ion Exchange Materials, Techniques, and Propert ies .

K. W . P E P P E R AND T. R. E. K R E S S M A N . Ion Exchange Work in Great Britain.

July 17 J. K H Y M AND J. SCHUBERT. Biological

and Medica l Applications.

E. W. M C C H E S N E Y AXD G. J. M A R T I N . Biological and Medical Applications.

July 18 C . SCATCIIARl) AND T . \ ' E R M E U L E N .

Exchange Theory ( Thermodynamics , Kinetics).

II . F. W A L T O N AND K. A. KRAUS. Ex­change with Complex Ions and Anion Separations.

July 19 T. \ " E U M I ULLN AND K. R. G I L L I L A N D .

Design and Engineer ing. W . JUDA, T. R. E. K R E S S M A N , AND K.

\ \ . Ρ Ε Ι Ί Έ Η . Membranes . July 20

II. II. STRAIN. Ion Migration in Chro­matographic Systems. STATISTICS IN C H E M I S T R Y

H. M. S M A L L W O O D , chairnian |. W. T U K E Y . vice chairnian

July 23 Statistics ; ι Analytical Chemistry. G R A N T W K R N I M O N T . Discussion. J. A. M I T C H E L L . Control ol Accuracy

and Precision ol Industrial Tests and Analyses.

J O H N M A N U E L . Design of Experimental Work to Develop Analytical Methods.

J O S E P H G E F F N K H . Evalua t ion of the Elementary Causes of Deviations in Spectrochemical Analyses.

M. M. SANDOMIJKL. Standardizat ion ol Test Methods through Interlahora-tory Tests.

July 24 Role of Statistics in Chemistry. J. W . T U K E Y . Discussion. G E O R G E K I M B A L L . W h a t Kind of Sta­

tistics Is Important in Chemistry?

W. (i. C O C H R A N . Comparat ive Expéri­mentation.

J. \V. TURKEY. Empirical Knowledge Li. Insight.

Training in Statistics lor Chemists. Hound Table Discussion.

July 25 Clinic. At this session, discussion of

concrete problems by members oi the conference will be carried on.

Statistics in Laboratory Experimenta­tion.

\ \ . J. You DEN. Discussion. H. F. SCRIBNER. Problems in Spectro-

chcinical Analysis. FRANK W I L C O X O N . The Use ot Ranks

in Latin Square Designs. July 26

Statistics in Laboratory Experimentation ( continued ).

J. I. M I N O R . Precision Reference Tem­peratures.

Louis T A N N E R . The Selection of Eco­nomic Precision Limits tor Labora­tory Tests.

Statistics in Industrial Research. R. 11. N O E L . Discussion. \V. L G O R E . Resolution of Interactions

in Chemical Experimentation. A. W. K I M B A L L , JR. Utility of Variance

Analysis. July 27

Statistics in Industrial Research ( con­t inued) .

C. A. BICKING. T h e Role of Statistics in Increasing the Productivity ol In­dustrial Research.

K. A. B R O W N L E E . Subject to be an­nounced.

C. D A N I E L . Linear Extrapolation. (Continued on page 1791)

groups of PICCO Synthetic Resins

SERVING A WIDE RANGE OF APPLICATIONS

PICCOLASTIC M a d e in six t y p e s a n d s e v e n m e l t i n g p o i n t s , f rom 5° C t o 150 e C . P a l e in color, P icco las -t i c R e s i n s a r e u n s a -p o n i f i a b l e , s t a b l e i n p a c k a g e , body a n d film, s o l u b l e in low-cos t sol­v e n t s , acid a n d a lka l i r e s i s t a n t . P e r m a n e n t l y t h e r m o p l a s t i c .

PICCOLYTE A p u r e hyd roca rbon , pale , non-yel lowing, t h e r m o p l a s t i c t e r -p e n e r e s i n — l o w i n cost , so lub le in low cost n a p h t h a s , chem­ically iner t , compat ­ible w i t h waxes , res­ins a n d m a n y other m a t e r i a l s . N ine melt­ing p o i n t s .

PICCOUMARON A series of t h e r m o ­p l a s t i c p a r a - c o u m -a r o n e i n d e n e res ins , so luble in coal t a r , t u r p e n t i n e , t e r p e n e a n d m o s t c h l o r i n a t e d s o l v e n t s . T e n me l t ing po in t s , from liquid to a b r i t t l e solid. I n e r t to all excep t s t r o n g c o n c e n t r a t e d a c i d s .

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G E N E R A L BIOCHEMISTRY

II. E. CAHTKH, chairman July 30

J. C. S H I ΠI I A N . Synthesis of Peptides. K. Iloi-MANN. Synthesis of Peptides. \V. II . IIAHTUNC;. Ben/.yloximmo Acid

Chlorides. R. M. HiiHH.sr. Optical Properties ot

Peptides. July 31

L. G. C i u i c . Fractionation ot Peptides. S. F . VELJCK. E n d Group Labeling ot

Peptides. G. II. Li. ACTII Peptides. F. SANCKH. D N P Peptides.

Aug. 1 R. B. JOHNSTON. Transpeptidation. J. E. SNOKE. Enzymatic Synthesis ot

Glutathione. II. XKUHATII . The Hydrolysis of Pep­

tides and Pept ide Derivatives by Ex­tracellular Proteolytic Enzvmes.

J. P. G H E E N S T E I N , ' V. E. ' PRK:E , A. MEISTEK, L. LEVINTOW, AND J. 13. G I L B E R T . Dehydropept ides .

Aug. 2 F . L I P M A N N . T h e Function ot Coen­

zyme A in Acetyl Transfer Reactions. E. R. S T A D T M A N . Transacetylation. H. S. ANKER. Acetylation of Amino

Acids. D. N A C H M A X S O H N . Acetylation of Cho­

line.

Aug. 3 S. OCHOA, J . R. STERN, AND S. KORKES.

Enzymatic Synthesis of Citric Acid and. Pyruvate Oxidation.

S. GLTRIN. Fat ty Acid Metabolism.

C U R R E N T T R E N D S IN ANALYTICAL· CHEMISTRY

W . E. CAMI 'HKLL, chairmtm J . J. Li ΝΓ. A N E , vice chairman

Trace A nalysis Aug. 6

S. E. Q. ASHLKV. Philosophy of Trace An^ilysis.

G. E. W H I T E . Fluorescence Analysis. Aug. 7

J. Yoa?:. Colorimetric· Trace1 Analysis. I I . LKVIN. Trace Analysis of Petroleum

Products. Aug. 8

E. II. SWII-T. Goloriinetric Trace Analy-sis.

λ\\ î 3 . C O O K K . Colorimetric Trace Analysis.

L. B. ROCKHS. Electrolytic Trace Analy-sis Involving Radioactive Indicators.

T. S. Lia-:. Tract1 Analysis Involving Electrolytic Reactions at a Rotated McTcurv Electrode.

Aug. 9 L. K. NASI i. Trace Gas Analysis. Speaker to be announced. Radioactive

Tracer Analvsis. Aug. 1(>

Speaker to he announced. Isotopic Di-lutr-on Analysis.

STEROID C H E M I S T R Y ΓΓ. F. G . \L I . \C ; I IER , chairman

Aug. 1;> to 17 Recent Advances in the Chemistry ot

Ail renal Steroids. General Topic for Presentation and Discussion: Total Svn thesis.

(Speaki-rs and detailed program will be announced la te r ) .

I N O R G A N I C C H E M I S T R Y Present Status and Desirable Future

Objectives W . C. F E R N E L I u s , chairman

Aug. 20 to 2 4 General Subjects: Coordination Com­

pounds, Crystal Growth, Electron-Do ik-imt Fluorine Compounds .

(Speakers and detailed program will he announced later.)

NUCLEIC ACIDS AND P R O T E I N S K. W. Ci. W'YCKOFF··, chairman

hsl. C. S I E H N . vice chairman Aug. 27 to 3 1

The {program will include the following topics :

The* Chemistry of and Analysis for Split Products ot Nucleic Acids.

Certain Reactions of Proteins. Problems ot Viruses Concerned with

( a ) T h e lTse of Tracers in Study­i n g t h e Growth of Bacteriophage a n d ( b ) The Nature1 of the In-Fections LJnit of Certain Plant Viruses .

Mechanisms of the Effects of Radia-t ion o n Microorganisms.

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