159 160 Mathematical Urban Air Pollution Models Harry Moses The Use of Pyrheliometers for Continuous Measurements of an Effective Air Pollution Mixing Depth 167 The Tabulation Technique for Forecasting Concentrations of Urban Air Pollutants Harry Moses anp D. N. EGGENBERGER Harry Mosss, J. B. ANDERSON, AND D. F. Gatz RADIATION PHYSICS 179 183 On the Fluorescence Characteristics of the p-Oligophenylenes and their Substituted Analogs I. B. Bertman anp O, J. STEINGRABER 197 Total Cross Sections for Inelastic Scattering of Charged Particles by Atoms and Molecules, III. Accurate Bethe Cross Section for Ionization of Helium 197 Electro-Optical Techniques for Ultrasensitive Radiophotoluminescent Dosimetry 197 Spectral Analysis of Thermoluminescent Glow Curves 198 201 203 204 207 209 213 214 214 Mirio Inoxuti anp Y.-K. Kim Jacos Kastner, R. K. Lanes, B. A. CAMERON, MicHAEL PAESLER, AND GEORGE ANDERSON B. G. OLTMAN, JacoB KasTNER, AND C. M. PapEN Environmental Neutron Measurements with Solid State Track Recorders J. H. Roperts, R. A. Parker, F. J. Conaen, Jacop Kastnir, anp B. G. OLTMAN Permanent Damage of ‘LiF Thermoluminescent Dosimeters by Fast Neutrons Jacos Kastner, Keira EckerMan, B. G. OLTMAN, AND PeTE TEDESCHI Ultrasonic Excitation of Thermoluminescent Lithium Fluoride JacoB Kastner, R. H. SELNer, C. M. Papen, anp B. G. OLTMAN Neutron Exposure to Lunar Astronauts JacoB Kastner, B. G. OLTMAN, YEHUDA FEIGH, AND RaymMonp Goup Inelastic-Scattering Cross Sections of Fast Charged Particles by Lit Y.-K. Kim anp Mitio Inokuti Form Factors of H-, He, and Lit Y.-K. Kim The Number of Bound States in Ion-Atom Systems SMi1o Tani AND Mrtio INOKUTI Generalized Oscillator Strengths of the Helium Atom. III. Transitions from the Ground State to the 3'D and 4!P States Y.-K. Kim anp Mitio Inoxuti Specific Primary Ionization F. F. Rieke anp WILLIAM PREPEJCHAL 218 Tables of Absorption Cross Sections, Photoionization Yields, and Photojionization Cross Sections for Several Gases 226 Isotope Effects in the Photoionization Yields and the Absorption Cross Sections for Ethylene and n-Butane 226 A Method for Estimating the Relative Importance of the Platzman Competitive Ionization Process from Isotope Effects in Molecular Photoionization J. C. PERSON The Effect of Pressure upon Ionization in Pure Rare Gases H. A. Scuuttrz 228 / f Further Studies on Fluorescence Polarization W.R. AnpERSON AND I. B. BERLMAN J. C. Person anp P. P. NicoLz J. C. PERSON AND P. P. NICOLE BIO-ENVIRONMENTAL STUDIES 229 231 Behavior of Fallout "Cs in Aquatic and Terrestrial Environments P. F. Gustarson, 8. 8. Brar, D. M. Ngeison, anp 8. E. Muniak PUBLICATIONS TA aa