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

PACKER HALL. University Center at Lehigh, where Colloid Division meets

34th National Colloid Symposium The 34th National Colloid Symposium will be held June 16 and 17 at Lehigh University, Bethlehem, Pa. Hosts will be the university and the ACS Lehigh

B. Roger Ray J. Th.G. Overbeek

Valley Section. Chairman of the sym­posium is Dr. B. Roger Ray of Wash­ington State University.

The program will include general sessions and invited papers on the topic "Adsorption on Semiconductors and Bare Metals" under the chairmanship of Dr. R. P. Eischens. Most of the papers will be preprinted from the journal of Physical Chemistry. Pre­prints will be mailed in advance to members of the Colloid Division.

The symposium banquet will be held Thursday evening, preceded by a com­plimentary social hour. Dr. J. Th.G. Overbeek, who is from the University of Utrecht, will be the foreign guest

of honor and special speaker. He is visiting professor at the University of Southern California. After the ban­quet he will speak on Black Soap Films.

Registration fees are 84.00 for mem­bers of the Colloid Division. 87.00 for other ACS members, 89.00 for non-members, and 81.00 for eligible stu­dents. Housing is available at low7

cost in a dormitory. Meals will be served at the University C'en ter. Pre-registration. banquet reservations, and requests for housing and transporta­tion information should go to the chair­man of the local committee for the symposium, Dr. A. C. Zettlemoyer, Chemistry Department. Lehigh Uni­versity, Bethlehem, Pa.

PROGRAM

THURSDAY MORNING

Donald Graham. The Failure of Dispersion Energy Calculations to Re­produce Pleats of Adsorption on Gra­phitic Carbon.

J. P. Redmond, P. L. Walker, Jr. Hydrogen Sorption on Graphite at Elevated Temperatures.

A. C. Zettlemoyer, Yung-Fang Yu, J. J. Chessick. Adsorption Studies on Metals. I. The Nature of the Thermal

Regeneration of Oxide-Coated Nickel, Cobalt, and Copper.

P. H. Lewis. The Effects of Oxy­gen Adsorption on the Κ X-Ray Ab­sorption Edge of Alumina Supported Nickel.

Jack H. Schulman. Surface Poten­tials at Metal/Gas and Mineral/Liquid Interfaces.

THURSDAY AFTERNOON

Section A

N. J. Harrick. Surface Chemistry from Spectral Analysis of Totally In­ternally Reflected Radiation.

R. J. Leak, P. W. Selwood. The Chemisorption of Oxygen on Nickel.

R. A. Gardner. A Prediction of Heterogeneous Catalytic Reactions.

V. Kesavulu, II. Austin Taylor. Sites for Hydrogen Chemisorption on Zinc Oxide.

A. C. Zettlemoyer, J. J. Chessick. Studies of Silicate Minerals. VI. Acid Sites on Kaolin and Silica-Alumina Cracking Catalysts.

Arthur J. Rosenberg, Mary C. Lavine. The Oxidation of Intermetal-lic Compounds. I. High Tempera­ture Oxidation of InSb.

Arthur J. Rosenberg. Oxidation of Intermetallic Compounds. II. Inter­rupted Oxidation of InSb.

Section Β

S. A. Greenberg, T. N. Chang, Elaine R. Anderson. Investigation of Hydrated Calcium Silicates. I. Solu­bility Products.

R. A. Laudise, A. A. Ballman. The Solubility of Quartz Under Hydro-thermal Conditions.

E. Matijevic, M. B. Abramson, K. F. Schulz, M. Kerker. Detection of Metal Ion Hydrolysis by Coagulation. II. Thorium.

Richard C. Goodknight, Waldemar A. Klikoff, Jr., Irving Fatt. Nonsteady-State Fluid Flow and Diffusion in Porous Media Containing Dead-End Pore Volume.

T. F. Ford. Viscosity-Concentration and Fluidity-Concentration Relation­ships for Suspensions of Spherical Par­ticles in Newtonian Liquids.

C. W. Dwiggins, Jr., R. J. Bolen, H. N. Dunning. Ultracentrifugal De­termination of the Micellar Character of Nonionic Detergent Solutions.

FRIDAY MORNING

Conway Pierce. The Frankel Iso­therm and Capillarv Condensation.

S. Levine, B. M. Bell. Theory of a Modified Poisson-Boltzmann. Equation for a Single Plane Double Layer.

W. H. Wade, Norman Hackerman. Heats of Immersion. IV. The Alumina-Water System—Variations with Particle Size and Outgassing Temperature.

Wasyl S. Hnojewyj, Lloyd H. Reyerson. The Sorption of Gaseous Hydrogen Chloride by Dry Lyophil-ized β-Lactoglobulin.

80 C & E N M A Y 23, 1960

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Arthur Veis, Catherine Aranyi. Phase Separat ion in Polyelcctrolyte Systems. I. Complex Coacervates of Gelatin.

E. S. Augenstine. L. G. Augenstine. E. R. Lippincott. Comparison of Trypsin X-Irradiated in Solution and in Agar Gels.

FRIDAY A F T E R N O O N J. P. Kratohvil. M. Orhanovic. E.

Matijevic. Coagulat ion of Lyophobic Colloids in Mixed Solvents. Influence of the Dielectric Constant .

A Symposium on the Status of Prob­lems in Molecular St ructure will be held at the Universi ty of Washington , Seattle. June 27 to 29. Sponsor is the ACS Division of Physical Chemistry.

Dr. Paul C. Cross of the University of Washington depa r tmen t of chem-

Paul C. Cross E. C. Lingafelter

istry is symposium chair-man. Chair­man of local a r rangements is Dr. E. C. Lingafelter. also of the depa r tmen t of chemistry.

Abstracts of papers to be presented will be mailed to all members of the division before the meet ing; non mem­bers will receive copies at the meet­ing. Registration fee, including the Tuesday evening banque t , is SIC) for division members and foreign visitors. S 12 for other AC'S members , and S l o for nonmembers . Additional banque t tickets for non par t ic ipants may be ob­tained for 84.00 each. A detailed s ta tement of registration and housing procedures has been mailed to divi­sion members .

Housing will be available in the university dormitories. Information on hotels and motels will be sent on request , or it may be obta ined directly from the Seattle C h a m b e r of Com­merce, 215 Columbia St., Seattle 4, Wash . Hotel reservations should be m a d e as soon as possible. Wives and children (five years or older) can be

John D . Skewis. Karol J. Mysels, Michael C. Cox. A Study of Rigid Films Using T ime-Lapse Photography .

M. J. Schick, E. A. Beyer. Foam Stability of Xonionic Detergents . I. Foam Dra inage .

Hans J. Trurnit. G. Schidlovsky. Electron Microscope Studies on Cross Sections of Buil t -Up Films of Fatty-Acid Soaps.

Paul Bêcher. Xonionic Surface Ac­tive Compounds . I II . Effect of Structure on Micelle Format ion in Benzene Solution.

accommoda ted in the dormitory (at the s tandard per person r a t e ) .

Lunches and breakfasts will be available in the dormitory cafeteria.

Meal tickets must be purchased in ad­

vance: S4.00 total for the three days

of the meet ing. Fur the r information is

available from Dr. Cross.

PROGRAM

MONDAY M O R N I N G

W. G. Schneider . Some Recent Molecular St ructure Investigation by Nuclear Magnet ic Resonance.

Martin Karplus. Magnet ic Proper­ties of Molecules.

M O N D A Y A F T E R N O O N

C. A. Hutchison. Jr. Paramagne t ic Resonance Absorption by Organic Molecules in Their Phosphorescent States.

H. M. McConnell. Electronic St ructure and Resonance Spectra of Free Radicals.

Daniel Kivelson. T h e Electron Spin Resonance Spectra of Phtha locvanine Radicals.

TUESDAY M O R N I N G

G. A. Jeffrey. T h e Polyhedral Cla thra te " Ice" Structures in High Hydra tes .

Dorothy M. Hodgkin. X-Ray Anal­ysis and Atomic Ar rangement in Large Organic Molecules.

R. E . Dickerson. Recent X-Ray WTork on T wo Haem Proteins.

TUESDAY A F T E R N O O N

L. E. Orgel. T h e Stereochemistry of Metal Ions.

C. A. Mead. T h e Resonance Effect in Absorption- Line Shapes .

W. T. Simpson. Electronic Spectra of Azo Dyes.

W E D N E S D A Y M O R N I N G

Patrick Thaddeus. Molecular Spec­troscopy Using Beam Masers.

Molecular Structure Symposium

82 C & E N M A Y 2 3, 1 9 6 0