• ARTICLES
  • Articles
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  • Letters to the Editor
• ERRATA
• LETTERS
  • Letters to the Editor

•	Local Production of Mesons at 11,300 Feet O. Piccioni pp. 1-5 [View   PDF (1105 kB) ]

•	On the Secondary Particles of Local Penetrating Showers O. Piccioni pp. 6-10 [View   PDF (1148 kB) ]

•	The Effect of Screening on Beta-Ray Spectra and Internal Conversion John R. Reitz pp. 10-18 [View   PDF (1867 kB) ]

•	Nuclear Disintegrations as Detected with Electron-Sensitive Emulsions Exposed in the Stratosphere J. J. Lord and Marcel Schein pp. 19-25 [View   PDF (812 kB) ]

•	Systematics of Alpha-Radioactivity I. Perlman, A. Ghiorso, and G. T. Seaborg pp. 26-50 [View   PDF (5277 kB) ]

•	The Beta-Spectra of Cl38 Lawrence M. Langer pp. 50-53 [View   PDF (768 kB) ]

•	The Heavy Nuclei of the Primary Cosmic Radiation H. L. Bradt and B. Peters pp. 54-70 [View   PDF (4271 kB) ]

•	Assignment and Disintegration Scheme of the 6.75-Hour Molybdenum D. N. Kundu, John L. Hult, and M. L. Pool pp. 71-74 [View   PDF (757 kB) ]

•	Assignment and Characteristic Radiations of the 14-day Tin Activity E. C. Mallary and M. L. Pool pp. 75-76 [View   PDF (353 kB) ]

•	Microwave Spectrum and Molecular Constants of Hydrogen Cyanide James W. Simmons, Wallace E. Anderson, and Walter Gordy pp. 77-79 [View   PDF (559 kB)  See Also: Erratum]

•	On the Emission Bands of CCl Putcha Venkateswarlu pp. 79-80 [View   PDF (285 kB) ]

•	Straggling of Electrons near the Critical Energy. II L. Eyges pp. 81-85 [View   PDF (887 kB) ]

•	Dimensional Effects Resulting from a High Dielectric Constant Found in a Ferromagnetic Ferrite Frank G. Brockman, P. H. Dowling, and Walter G. Steneck pp. 85-93 [View   PDF (1827 kB) ]

•	The Influence of Nuclear Structure on the Hyperfine Structure of Heavy Elements Aage Bohr and V. F. Weisskopf pp. 94-98 [View   PDF (929 kB) ]

•	On the α-β- and α-K-Branching of the Heaviest Natural and Artificial Radioactive Substances W. Jentschke pp. 98-101 [View   PDF (724 kB) ]

•	On the Disintegration Products of the 2.2-μSec. Meson E. P. Hincks and B. Pontecorvo pp. 102-120 [View   PDF (4375 kB) ]

•	A Study of the Spectra of Columbium and Molybdenum in the Extreme Ultraviolet George W. Charles pp. 120-124 [View   PDF (1006 kB) ]

•	Electronic Specific Heats in Tungsten and Zinc A. A. Silvidi and J. G. Daunt pp. 125-129 [View   PDF (1122 kB) ]

•	l-Type Doubling in Polyatomic Molecules and Its Application to the Microwave Spectrum of Methyl Cyanide and Methyl Iso-Cyanide Harald H. Nielsen pp. 130-135 [View   PDF (952 kB) ]

•	The Angular Correlation of Scattered Annihilation Radiation C. S. Wu and I. Shaknov pp. 136 [View   PDF (243 kB) ]

•	The Optical Detection of Radiofrequency Resonance M. H. Pryce pp. 136-137 [View   PDF (378 kB) ]

•	The Beta-Spectrum of Ca45 P. Macklin, L. Feldman, L. Lidofsky, and C. S. Wu pp. 137-138 [View   PDF (353 kB) ]

•	Temperature Dependence of Scintillation Pulses in Anthracene G. G. Kelley and M. Goodrich pp. 138 [View   PDF (218 kB) ]

•	A 7 × 10-9 sec. Isomeric State in 79Au197 F. K. Mcgowan pp. 138-139 [View   PDF (334 kB) ]

•	Lifetimes of Excited States of Au197, Fe57, Cd111, Hg198, and Tl203 Martin Deutsch and W. E. Wright pp. 139-140 [View   PDF (342 kB) ]

•	Applications of Total Reflection of Neutrons M. Hamermesh pp. 140 [View   PDF (226 kB) ]

•	Note on Rotational Universe C. Y. Fan pp. 140 [View   PDF (226 kB) ]

•	On the Hyperfine Structure of the 2P1 / 2 State of Tl205 and Tl203 A. Berman, P. Kusch, and A. K. Mann pp. 140-141 [View   PDF (439 kB) ]

•	The Electric Quadrupole Moment of the Deuteron G. F. Newell pp. 141 [View   PDF (212 kB) ]

•	Functions Used in Flügge's Method of Predicting Approximate Spatial Neutron Distributions L. Secrest pp. 141-142 [View   PDF (464 kB) ]

•	Radioactive Xenon 125, and Xenon 127 D. L. Anderson and M. L. Pool pp. 142 [View   PDF (252 kB) ]

•	Units of Radioactivity L. F. Curtiss, R. D. Evans, Warren Johnson, and Glenn T. Seaborg pp. 142 [View   PDF (252 kB) ]

•	Effect of He3 on the λ-Point of He4 O. K. Rice pp. 142-143 [View   PDF (522 kB) ]

•	Processes Involving Vector Mesons James N. Snyder pp. 143 [View   PDF (270 kB) ]

•	Ultrasonic Interferometry for Low Acoustic Impedance James L. Stewart and Ellen S. Stewart pp. 143-144 [View   PDF (528 kB) ]

•	Cosmic Radiation and the Maintenance of a Potential Gradient in the Atmosphere S. A. Korff pp. 144 [View   PDF (258 kB) ]

•	Dispersion in NH3 in the Microwave Region1 George Birnbaum pp. 144-145 [View   PDF (472 kB) ]

•	Field Dynamics. I. Classical K. V. Roberts pp. 146 [View   PDF (196 kB) ]

•	Field Dynamics. II. Quantum K. V. Roberts pp. 146-147 [View   PDF (464 kB) ]

•	Determination of g-Values in Paramagnetic Organic Compounds by Microwave Resonance A. N. Holden, C. Kittel, F. R. Merritt, and W. A. Yager pp. 147-148 [View   PDF (517 kB) ]

•	Hyperfine Structure and Exchange Narrowing of Paramagnetic Resonance C. H. Townes and J. Turkevich pp. 148 [View   PDF (249 kB)  See Also: Erratum]

•	Microwave Spectrum of CH2CFCl J. K. Bragg, T. C. Madison, and A. H. Sharbaugh pp. 148-149 [View   PDF (469 kB) ]

•	Erratum: A Theory of Pressure Absorption Masataka Mizushima pp. 149 [View   PDF (220 kB) ]

•	Coherent Scattering of X-Rays by Atoms with More Than One Electron According to the One-Electron Theory and the Positron Theory E. Arnous pp. 149 [View   PDF (220 kB) ]

•	On the Treatment of Quantum Electrodynamics without Eliminating the Longitudinal Field Ning Hu pp. 150 [View   PDF (215 kB) ]

•	On the Infra-Red Absorption of the Hydrogen Molecule Masataka Mizushima pp. 150-151 [View   PDF (441 kB) ]

•	Search for Photons Emitted by Long-Life Species of Nickel D. G. Thomas and J. D. Kurbatov pp. 151-152 [View   PDF (476 kB) ]

•	Non-Linear I-V Characteristic of Ge at Very Low Temperatures F. K. Du Pré pp. 152 [View   PDF (250 kB)  See Also: Erratum]

•	A Preliminary Report on the Fine Structure of the Microwave Absorption Spectrum of Oxygen James H. Burkhalter, Roy S. Anderson, William V. Smith, and Walter Gordy pp. 152-153 [View   PDF (499 kB) ]

•	Lifetimes of Mercury and Potassium Atoms in Excited States B. Mishra pp. 153 [View   PDF (249 kB) ]

•	On the Nature of the π-Meson B. Ferretti and S. Gallone pp. 153-154 [View   PDF (378 kB) ]