Last update:
Thu Nov 2 16:37:14 MDT 2023
Louis A. Turner Nuclear Fission . . . . . . . . . . . . 1--29
J. J. Livingood and
G. T. Seaborg A Table of Induced Radioactivities . . . 30--46
Harvey Fletcher Auditory Patterns . . . . . . . . . . . 47--65
F. Zwicky Types of Novae . . . . . . . . . . . . . 66--85
M. J. Druyvesteyn and
F. M. Penning The Mechanism of Electrical Discharges
in Gases of Low Pressure . . . . . . . . 87--174
David M. Dennison The Infra-Red Spectra of Polyatomic
Molecules. Part II . . . . . . . . . . . 175--214
Millard F. Manning and
Maurice E. Bell Electrical Conduction and Related
Phenomena in Solid Dielectrics . . . . . 215--256
Karl K. Darrow Helium the Superfluid . . . . . . . . . 257--266
John R. Loofbourow Borderland Problems in Biology and
Physics . . . . . . . . . . . . . . . . 267--358
J. C. Boyce Spectroscopy in the Vacuum Ultraviolet 1--57
Maurice M. Shapiro Tracks of Nuclear Particles in
Photographic Emulsions . . . . . . . . . 58--71
M. J. Druyvesteyn and
F. M. Penning Errata: Mechanism of Electrical
Discharges in Gases of Low Pressure . . 72--73
H. Sponer and
E. Teller Electronic Spectra of Polyatomic
Molecules . . . . . . . . . . . . . . . 75--170
Philipp Frank Why Do Scientists and Philosophers So
Often Disagree about the Merits of a New
Theory? . . . . . . . . . . . . . . . . 171--175
H. Margenau Metaphysical Elements in Physics . . . . 176--189
W. F. G. Swann The Relation of Theory to Experiment in
Physics . . . . . . . . . . . . . . . . 190--196
W. F. G. Swann Relativity, the Fitzgerald--Lorentz
Contraction, and Quantum Theory . . . . 197--202
W. Pauli Relativistic Field Theories of
Elementary Particles . . . . . . . . . . 203--232
Raymond T. Birge A New Table of Values of the General
Physical Constants (as of August, 1941) 233--239
Bruno Rossi and
Kenneth Greisen Cosmic-Ray Theory . . . . . . . . . . . 240--309
R. W. Ditchburn and
J. C. Gilmour The Vapor Pressures of Monatomic Vapors 310--327
S. A. Korff The Operation of Proportional Counters 1--11
Walter Kauzmann Dielectric Relaxation as a Chemical Rate
Process . . . . . . . . . . . . . . . . 12--44
F. R. Hirsh, Jr. A Summary of X-Ray Satellites . . . . . 45--54
Robert S. Mulliken Introduction to the Conference . . . . . 57--58
William F. Meggers The Primary Standard of Wave-Length . . 59--63
Anonymous Discussion . . . . . . . . . . . . . . . 63--63
W. Ewart Williams Construction and Use of Reflection
Echelons . . . . . . . . . . . . . . . . 64--64
Anonymous Discussion . . . . . . . . . . . . . . . 65--65
H. S. Pomerance and
H. G. Beutler Identification of Orders and Ghosts in
Grating Spectra by Diffracting Slits . . 66--67
Karl Wilh. Meissner Application of Atomic Beams in
Spectroscopy . . . . . . . . . . . . . . 68--78
Russell A. Fisher Atomic Beam Light Sources Applied to the
Structure of the Magnesium I Resonance
Line . . . . . . . . . . . . . . . . . . 79--81
J. E. Mack and
E. C. Barkofsky Atomic Beam Apparatus for Studying the
Atomic Spectra of Gases, Especially
Hydrogen . . . . . . . . . . . . . . . . 82--93
W. Ewart Williams Attempts at Obtaining Excitation of an
Atomic Beam of Monatomic Hydrogen . . . 94--95
William F. Meggers Atomic Spectra of Rare Earth Elements 96--103
H. R. Kratz and
J. E. Mack The Absorption Spectra of Potassium,
Rubidium, and Caesium . . . . . . . . . 104--104
Simon Freed Spectra of Ions in Fields of Various
Symmetry in Crystals and Solutions . . . 105--111
Eugene Rabinowitch Electron Transfer Spectra and Their
Photochemical Effects . . . . . . . . . 112--131
Peter Pringsheim Fluorescence and Phosphorescence of
Thallium-Activated Potassium-Halide
Phosphors . . . . . . . . . . . . . . . 132--138
Fred L. Whipple Meteors and the Earth's Upper Atmosphere 139--139
C. T. Elvey The Light of the Night Sky . . . . . . . 140--150
Anonymous Discussion . . . . . . . . . . . . . . . 150--150
Rupert Wildt The Geochemistry of the Atmosphere and
the Constitution of the Terrestrial
Planets . . . . . . . . . . . . . . . . 151--159
G. Van Biesbroeck Structural Texture of Comets . . . . . . 160--163
N. T. Bobrovnikoff Physical Theory of Comets in the Light
of Spectroscopic Data . . . . . . . . . 164--178
Anonymous Discussion . . . . . . . . . . . . . . . 178--178
Andrew McKellar Intensity Measurements on Emission Bands
in Cometary Spectra . . . . . . . . . . 179--189
Anonymous Discussion . . . . . . . . . . . . . . . 189--189
P. Swings Molecular Bands in Cometary Spectra.
Identifications . . . . . . . . . . . . 190--194
G. Herzberg Evidence for the Presence of CH$_2$
Molecules in Comets . . . . . . . . . . 195--197
Ernest F. Barker The Infra-Red Spectra of Triatomic
Molecules . . . . . . . . . . . . . . . 198--203
Robert S. Mulliken Electronic Structures and Spectra of
Triatomic Oxide Molecules . . . . . . . 204--215
S. Mrozowski Emission Spectrum of the Ion CO$_2^+$ 216--218
G. Herzberg $l$-Type Doubling in Linear Polyatomic
Molecules . . . . . . . . . . . . . . . 219--223
H. Sponer Ultraviolet Absorption Spectra of
Substituted Benzenes . . . . . . . . . . 224--231
A. L. Sklar Electronic Absorption Spectra of Benzene
and Its Derivatives . . . . . . . . . . 232--245
Anthony Turkevich and
Mark Fred Rotational Structure of the Near
Ultraviolet Bands of Benzene . . . . . . 246--247
Maria Goeppert Mayer and
Kenneth J. McCallum Calculation of the Absorption Spectrum
of Wurster's Salts . . . . . . . . . . . 248--257
Anonymous Discussion . . . . . . . . . . . . . . . 257--258
Robert S. Mulliken and
Carol A. Rieke Bond Integrals and Spectra With an
Analysis of Kynch and Penney's Paper on
the Heat of Sublimation of Carbon . . . 259--259
Emma P. Carr and
Lucy W. Pickett and
Hildegard Stücklen The Absorption Spectra of a Series of
Dienes . . . . . . . . . . . . . . . . . 260--264
Robert S. Mulliken Structure and Ultraviolet Spectra of
Ethylene, Butadiene, and Their Alkyl
Derivatives . . . . . . . . . . . . . . 265--274
Leslie G. S. Brooker Absorption and Resonance in Dyes . . . . 275--293
K. F. Herzfeld and
A. L. Sklar Color and Constitution of Polymethine
Dyes . . . . . . . . . . . . . . . . . . 294--302
S. E. Sheppard The Effects of Environment and
Aggregation on the Absorption Spectra of
Dyes . . . . . . . . . . . . . . . . . . 303--340
E. U. Condon Principles of Micro-Wave Radio . . . . . 341--389
Wilfried Heller The Origin and the Complications of
Electric Double Refraction and of
Electric Dichroism in Dilute Dispersed
Systems . . . . . . . . . . . . . . . . 390--409
S. E. Sheppard Errata: The Effects of Environment and
Aggregation on the Absorption Spectra of
Dyes . . . . . . . . . . . . . . . . . . 410--410
S. Chandrasekhar Stochastic Problems in Physics and
Astronomy . . . . . . . . . . . . . . . 1--89
Newell S. Gingrich The Diffraction of X-Rays by Liquid
Elements . . . . . . . . . . . . . . . . 90--110
Geo. Glockler The Raman Effect . . . . . . . . . . . . 111--173
W. Pauli On Dirac's New Method of Field
Quantization . . . . . . . . . . . . . . 175--207
Emil Jan Konopinski Beta-Decay . . . . . . . . . . . . . . . 209--245
Fred L. Whipple Meteors and the Earth's Upper Atmosphere 246--264
Glenn T. Seaborg Table of Isotopes . . . . . . . . . . . 1--32
Vladimir Karapetoff Special Theory of Relativity in
Hyperbolic Functions . . . . . . . . . . 33--52
J. J. Bikerman Surface Roughness and Sliding Friction 53--68
Philip M. Morse and
Richard H. Bolt Sound Waves in Rooms . . . . . . . . . . 69--150
Karl K. Darrow Foreword . . . . . . . . . . . . . . . . 152--152
S. Mrozowski Forbidden Lines in the Laboratory . . . 153--174
J. Gibson Winans Partial Selection Rule for Sensitized
Fluorescence . . . . . . . . . . . . . . 175--181
J. R. Platt and
H. B. Klevens Spectroscopy of Organic Molecules in the
Vacuum Ultraviolet . . . . . . . . . . . 182--223
H. Sponer The Near Ultraviolet Absorption of
Pyridine Vapor . . . . . . . . . . . . . 224--225
E. Rabinowitch Spectra of Porphyrins and Chlorophyll 226--235
Arthur Adel and
E. F. Barker Grating Infra-Red Measurements at
Oblique Incidence. Line Width in the
Spectrum of N$_2$O . . . . . . . . . . . 236--240
Alvin H. Nielsen and
Harald H. Nielsen The Infra-Red Absorption Spectrum of
Deutero-Methyl Chloride . . . . . . . . 241--244
Wave H. Shaffer Degenerate Modes of Vibration and
Perturbations in Polyatomic Molecules 245--259
R. A. Oetjen and
H. M. Randall and
W. E. Anderson The Infra-Red Spectra of the Isomeric
Octanes in the Liquid Phase . . . . . . 260--264
R. A. Oetjen and
H. M. Randall The Infra-Red Spectra of the Isomeric
Octanes in the Vapor Phase . . . . . . . 265--270
N. T. Bobrovnikoff Spectra of the Planets . . . . . . . . . 271--285
Otto Struve Recent Progress in the Interpretation of
Stellar Spectra . . . . . . . . . . . . 286--300
S. Chandrasekhar The Negative Ions of Hydrogen and Oxygen
in Stellar Atmospheres . . . . . . . . . 301--306
J. Rud Nielsen and
V. Thornton and
E. Brock Dale The Absorption Laws for Gases in the
Infra-Red . . . . . . . . . . . . . . . 307--324
J. J. Bikerman Surface Roughness and Sliding Friction 324--324
Philip M. Morse and
Richard H. Bolt Sound Waves in Rooms . . . . . . . . . . 324--324
Karl K. Darrow Foreword . . . . . . . . . . . . . . . . 2--2
P. W. Bridgman Effects of High Hydrostatic Pressure on
the Plastic Properties of Metals . . . . 3--14
William F. Brown, Jr. Virtues and Weaknesses of the Domain
Concept . . . . . . . . . . . . . . . . 15--19
Clarence Zener The Fracture Stress of Steel . . . . . . 20--26
J. H. Van Vleck A Survey of the Theory of Ferromagnetism 27--47
Saul Dushman Application of Theory of Absolute
Reaction Velocities to Creep of Metals 48--49
G. H. Wannier The Statistical Problem in Cooperative
Phenomena . . . . . . . . . . . . . . . 50--60
Otto Beeck Catalysis --- a Challenge to the
Physicist (As Exemplified by the
Hydrogenation of Ethylene over Metal
Catalysts) . . . . . . . . . . . . . . . 61--71
R. M. Bozorth and
H. J. Williams Effect of Small Stresses on Magnetic
Properties . . . . . . . . . . . . . . . 72--80
F. W. Constant Ferromagnetic Impurities in Metals . . . 81--86
A. R. Kaufmann and
S. T. Pan and
J. R. Clark Magnetization of Gold-Iron and
Gold-Nickel Solid Solutions . . . . . . 87--92
W. Pauli Niels Bohr on His 60th Birthday . . . . 97--101
G. Hevesy On the Effect of Roentgen Rays on
Cellular Division . . . . . . . . . . . 102--111
James Franck Photosynthetic Activity of Isolated
Chloroplasts . . . . . . . . . . . . . . 112--119
Albert Einstein and
Ernst G. Straus The Influence of the Expansion of Space
on the Gravitation Fields Surrounding
the Individual Stars . . . . . . . . . . 120--124
G. Gamow and
G. Keller A Shell Source Model for Red Giant Stars 125--137
S. Chandrasekhar The Formation of Absorption Lines in a
Moving Atmosphere . . . . . . . . . . . 138--156
John Archibald Wheeler and
Richard Phillips Feynman Interaction with the Absorber as the
Mechanism of Radiation . . . . . . . . . 157--181
L. H. Thomas Relativistic Invariance . . . . . . . . 182--186
Guido Beck Field Concepts in Quantum Theory . . . . 187--194
P. A. M. Dirac On the Analogy Between Classical and
Quantum Mechanics . . . . . . . . . . . 195--199
H. J. Bhabha Relativistic Wave Equations for the
Elementary Particles . . . . . . . . . . 200--216
E. J. Williams Application of Ordinary Space-Time
Concepts in Collision Problems and
Relation of Classical Theory to Born's
Approximation . . . . . . . . . . . . . 217--226
J. H. Van Vleck and
V. F. Weisskopf On the Shape of Collision-Broadened
Lines . . . . . . . . . . . . . . . . . 227--236
F. Bloch and
I. I. Rabi Atoms in Variable Magnetic Fields . . . 237--244
Max Born On the Quantum Theory of Pyroelectricity 245--251
W. Heitler and
P. Walsh Theory of Cosmic-Ray Mesons . . . . . . 252--262
Lamek Hulthén Comments on the Difficulties of the
Meson Theory . . . . . . . . . . . . . . 263--266
W. Pauli and
N. Hu On the Strong Coupling Case for
Spin-Dependent Interactions in Scalar-
and Vector-Pair Theories . . . . . . . . 267--286
Lise Meitner An Attempt to Single Out Some Fission
Processes of Uranium by Using the
Differences in Their Energy Release . . 287--291
Louis A. Turner The Missing Heavy Nuclei . . . . . . . . 292--296
Gordon A. R. Graham and
Hans Halban, Jr. On the Angular Distribution of Neutrons
in the Photo-Disintegration of the
Deuteron . . . . . . . . . . . . . . . . 297--304
O. Klein and
J. Lindhard Some Remarks on the Quantum Theory of
the Superconductive State . . . . . . . 305--309
F. London Planck's Constant and Low Temperature
Transfer . . . . . . . . . . . . . . . . 310--320
S. Goudsmit Random Distribution of Lines in a Plane 321--322
Ming Chen Wang and
G. E. Uhlenbeck On the Theory of the Brownian Motion II 323--342
H. B. G. Casimir On Onsager's Principle of Microscopic
Reversibility . . . . . . . . . . . . . 343--350
H. D. Smyth Atomic Energy for Military Purposes . . 351--471
British Information Services Statements Relating to the Atomic Bomb 472--490
P. W. Bridgman Recent Work in the Field of High
Pressures . . . . . . . . . . . . . . . 1--93
S. Chandrasekhar On a New Theory of Weizsäcker on the
Origin of the Solar System . . . . . . . 94--102
R. Samuel The Dissociation Spectra of Covalent
Polyatomic Molecules . . . . . . . . . . 103--147
A. Einstein and
E. G. Straus Corrections and Additional Remarks to
our Paper: The Influence of the
Expansion of Space on the Gravitation
Fields Surrounding the Individual Stars 148--149
R. Clark Jones and
W. H. Furry The Separation of Isotopes by Thermal
Diffusion . . . . . . . . . . . . . . . 151--224
N. N. Das Gupta and
S. K. Ghosh A Report on the Wilson Cloud Chamber and
Its Applications in Physics . . . . . . 225--290
P. W. Bridgman Recent Work in the Field of High
Pressures: Addendum . . . . . . . . . . 291--291
M. Stanley Livingston Ion Sources for Cyclotrons . . . . . . . 293--299
I. Estermann Molecular Beam Technique . . . . . . . . 300--323
J. B. M. Kellogg and
S. Millman The Molecular Beam Magnetic Resonance
Method. The Radiofrequency Spectra of
Atoms and Molecules . . . . . . . . . . 323--352
L. M. Field High Current Electron Guns . . . . . . . 353--361
G. A. Morton Electron Guns for Television Application 362--378
A. M. Skellett Beam Production in Radial Beam Tubes,
Beam Power Tubes, and Other Low Voltage
Electronic Devices . . . . . . . . . . . 379--383
Frederick Seitz Color Centers in Alkali Halide Crystals 384--408
R. F. S. Hearmon The Elastic Constants of Anisotropic
Materials . . . . . . . . . . . . . . . 409--440
J. C. Slater Microwave Electronics . . . . . . . . . 441--512
The Plutonium Project Nuclei Formed in Fission: Decay
Characteristics, Fission Yields, and
Chain Relationships . . . . . . . . . . 513--544
G. Wentzel Recent Research in Meson Theory . . . . 1--18
Anonymous Erratum: Nuclei Formed in Fission: Decay
Characteristics, Fission Yields, and
Chain Relationships . . . . . . . . . . 18--18
W. E. Stephens The Neutron-Hydrogen Mass Difference and
the Neutron Mass . . . . . . . . . . . . 19--24
L. D. Marinelli and
R. F. Brinckerhoff and
G. J. Hine Average Energy of Beta-Rays Emitted by
Radioactive Isotopes . . . . . . . . . . 25--28
R. M. Bozorth Magnetism . . . . . . . . . . . . . . . 29--86
Frederick Halverson The Use of Deuterium in the Analysis of
Vibrational Spectra . . . . . . . . . . 87--131
G. D. Latyshev The Interaction of $\gamma$-Rays With
Matter and the Spectroscopy of
$\gamma$-Radiation . . . . . . . . . . . 132--145
C. Jayaratnam Eliezer The Interaction of Electrons and an
Electromagnetic Field . . . . . . . . . 147--184
Robert E. Marshak Theory of the Slowing Down of Neutrons
by Elastic Collision with Atomic Nuclei 185--238
Eugene Feenberg Semi-Empirical Theory of the Nuclear
Energy Surface . . . . . . . . . . . . . 239--258
H. H. Goldsmith and
H. W. Ibser and
B. T. Feld Neutron Cross Sections of the Elements:
a Compilation . . . . . . . . . . . . . 259--297
Raymond T. Birge and
J. W. Weinberg Least-Squares' Fitting of Data by Means
of Polynomials . . . . . . . . . . . . . 298--360
G. M. Clemence The Relativity Effect in Planetary
Motions . . . . . . . . . . . . . . . . 361--364
Frank B. Jewett The Genesis of the National Research
Council and Millikan's World War I Work 1--6
L. A. DuBridge R. A. Millikan and the California
Institute of Technology . . . . . . . . 7--9
Paul S. Epstein Robert Andrews Millikan as Physicist and
Teacher . . . . . . . . . . . . . . . . 10--25
Duane Roller Millikan's Influence on Undergraduate
Teaching . . . . . . . . . . . . . . . . 26--30
Warren Weaver Statistical Freedom of the Will . . . . 31--34
Albert Einstein A Generalized Theory of Gravitation . . 35--39
Boris Podolsky and
Philip Schwed Review of a Generalized Electrodynamics 40--50
Richard C. Tolman and
Paul C. Fine On the Irreversible Production of
Entropy . . . . . . . . . . . . . . . . 51--77
S. J. Barnett Note on Diamagnetism: Clarification of
Relations between Fundamental Molecular
Theories . . . . . . . . . . . . . . . . 78--81
Jesse W. M. DuMond and
E. Richard Cohen Our Knowledge of the Atomic Constants
$F$, $N$, $m$, and $h$ in 1947, and of
Other Constants Derivable Therefrom . . 82--108
I. S. Bowen The Abundance of Oxygen in the Sun . . . 109--112
Linus Pauling and
Fred J. Ewing The Ratio of Valence Electrons to Atoms
in Metals and Intermetallic Compounds 112--122
W. Bartky and
A. J. Dempster The Approach to Equilibrium in
Fractionation . . . . . . . . . . . . . 123--127
Otto Beeck Surface Catalysis . . . . . . . . . . . 127--130
Alexander Goetz and
Edward C. Y. Inn Reversible Photolysis of Ag Sorbed on
Collodial Metal Oxides . . . . . . . . . 131--142
G. Potapenko and
D. Wheeler, Jr. A New Method of Determining the
Relaxation Time and the Dipole Moment of
Polar Substances; Its Application to
Fatty Acids . . . . . . . . . . . . . . 143--150
Leonard B. Loeb Statistical Factors in Spark Discharge
Mechanisms . . . . . . . . . . . . . . . 151--160
W. V. Houston Normal Vibrations of a Crystal Lattice 161--165
Robert B. Leighton The Vibrational Spectrum and Specific
Heat of a Face-Centered Cubic Crystal 165--174
W. R. Smythe Narrow Gaps in Microwave Problems . . . 175--180
John Strong The Parastatic Moving Needle
Galvanometer . . . . . . . . . . . . . . 180--184
R. F. Christy and
R. Latter Proton Widths of Light Nuclei . . . . . 185--190
W. F. Hornyak and
T. Lauritsen Energy Levels of Light Nuclei . . . . . 191--227
Milton S. Plesset and
Philip A. Shaffer, Jr. Drag in Cavitating Flow . . . . . . . . 228--231
Carl Eckart The Theory of the Anelastic Fluid . . . 232--235
W. A. Fowler and
C. C. Lauritsen and
T. Lauritsen Gamma-Radiation from Excited States of
Light Nuclei . . . . . . . . . . . . . . 236--277
H. R. Crane The Energy and Momentum Relations in the
Beta-Decay, and the Search for the
Neutrino . . . . . . . . . . . . . . . . 278--295
Allan C. G. Mitchell The Use of Coincidence Counting Methods
in Determining Nuclear Disintegration
Schemes . . . . . . . . . . . . . . . . 296--304
Robley D. Evans and
Richard O. Evans Studies of Self-Absorption in Gamma-Ray
Sources . . . . . . . . . . . . . . . . 305--326
Serge A. Korff The Production of Nuclear Disruptions by
the Cosmic Radiation . . . . . . . . . . 327--333
Raymond V. Adams and
Carl D. Anderson and
Paul E. Lloyd and
R. Ronald Rau and
Ram C. Saxena Cosmic Rays at 30,000 Feet . . . . . . . 334--349
H. V. Neher and
W. C. Roesch Cosmic-Ray Effects from Solar Flares and
Magnetic Storms . . . . . . . . . . . . 350--352
A. T. Biehl and
R. A. Montgomery and
H. V. Neher and
W. H. Pickering and
W. C. Roesch A New Cosmic-Ray Telescope for High
Altitudes . . . . . . . . . . . . . . . 353--359
A. T. Biehl and
R. A. Montgomery and
H. V. Neher and
W. H. Pickering and
W. C. Roesch Recent Studies of the Cosmic-Ray
Latitude Effect at High Altitudes . . . 360--366
R. P. Feynman Space-Time Approach to Non-Relativistic
Quantum Mechanics . . . . . . . . . . . 367--387
Armin J. Deutsch The Continuous Spectrum of the Sun . . . 388--398
Carl Eckart The Approximate Solution of
One-Dimensional Wave Equations . . . . . 399--417
R. D. Cowan and
G. H. Dieke Self-Absorption of Spectrum Lines . . . 418--455
F. Gutmann The Electret . . . . . . . . . . . . . . 457--472
W. R. Smythe Erratum: Narrow Gaps in Microwave
Problems . . . . . . . . . . . . . . . . 472--472
J. C. Slater The Design of Linear Accelerators . . . 473--518
A. B. Arons and
D. R. Yennie Energy Partition in Underwater Explosion
Phenomena . . . . . . . . . . . . . . . 519--536
Bruno Rossi Interpretation of Cosmic-Ray Phenomena 537--583
G. T. Seaborg and
I. Perlman Table of Isotopes . . . . . . . . . . . 585--667
Walter Gordy Microwave Spectroscopy . . . . . . . . . 668--717
Joseph G. Hamilton The Metabolic Properties of the Fission
Products and Actinide Elements . . . . . 718--728
Robert A. Millikan The Present Status of the Evidence for
the Atom-Annihilation Hypothesis . . . . 1--13
R. Maze and
A. Fréon and
J. Daudin and
P. Auger Extensive and Penetrating Atmospheric
Showers . . . . . . . . . . . . . . . . 14--20
G. D. Rochester The Penetrating Particles in Cosmic-Ray
Showers . . . . . . . . . . . . . . . . 20--26
G. Cocconi Results and Problems Concerning the
Extensive Air Showers . . . . . . . . . 26--30
B. Rossi and
C. D. Anderson and
J. R. Oppenheimer and
G. E. Valley and
R. D. Sard Discussion on the Disintegration and
Nuclear Absorption of Mesons . . . . . . 31--37
Robert B. Brode The Mass of the Mesotron . . . . . . . . 37--41
Louis Leprince-Ringuet Photographic Evidence for the Existence
of a Very Heavy Meson . . . . . . . . . 42--43
S. E. Forbush and
P. S. Gill and
M. S. Vallarta On the Mechanism of Sudden Increases of
Cosmic Radiation Associated with Solar
Flares . . . . . . . . . . . . . . . . . 44--48
Anonymous Discussion . . . . . . . . . . . . . . . 49--50
Evan O. Kane and
T. J. B. Shanley and
John A. Wheeler Influence on the Cosmic-Ray Spectrum of
Five Heavenly Bodies . . . . . . . . . . 51--71
Raymond V. Adams and
Carl D. Anderson and
Eugene W. Cowan Observations of Cosmic Rays at High
Altitudes . . . . . . . . . . . . . . . 72--75
Serge A. Korff A Critique of Ionization Measurements of
Nuclear Disruptions Produced by Cosmic
Radiation . . . . . . . . . . . . . . . 75--81
J. Clay The Energy Spectrum of Cosmic-Radiation
Particles and Photons . . . . . . . . . 82--93
J. Clay High Energy Particles, Bursts, and
Showers . . . . . . . . . . . . . . . . 94--100
H. L. Bradt and
Phyllis Freier and
E. J. Lofgren and
E. P. Ney and
F. Oppenheimer and
B. Peters Evidence for Heavy Nuclei as a Component
of Primary Cosmic Radiation . . . . . . 101--103
Bruno Rossi Electrons and Photons in Cosmic Rays . . 104--112
W. Heitler Theory of Meson Production . . . . . . . 113--121
G. T. Reynolds On the Effect of Lead above Apparatus
for the Detection of Low Energy Mesons 122--123
Thorbjorn Sigurgeirsson and
K. Alan Yamakawa Electron Emitting Power of Stopped
Mesons . . . . . . . . . . . . . . . . . 124--132
John A. Wheeler Some Consequences of the Electromagnetic
Interaction between $\mu^-$-Mesons and
Nuclei . . . . . . . . . . . . . . . . . 133--143
J. Tiomno and
John A. Wheeler Energy Spectrum of Electrons from Meson
Decay . . . . . . . . . . . . . . . . . 144--152
J. Tiomno and
John A. Wheeler Charge-Exchange Reaction of the
$\mu$-Meson with the Nucleus . . . . . . 153--165
W. Y. Chang A Cloud-Chamber Study of Meson
Absorption by Thin Pb, Fe, and Al Foils 166--180
J. R. Oppenheimer Concluding Remarks to Cosmic-Ray
Symposium . . . . . . . . . . . . . . . 181--183
Conyers Herring and
M. H. Nichols Thermionic Emission . . . . . . . . . . 185--270
Emilio Segr\`e and
A. C. Helmholz Nuclear Isomerism . . . . . . . . . . . 271--304
Victor F. Weisskopf Recent Developments in the Theory of the
Electron . . . . . . . . . . . . . . . . 305--315
Martin O. Stern The Masses of the Heavy Isotopes . . . . 316--321
J. C. Henniker The Depth of the Surface Zone of a
Liquid . . . . . . . . . . . . . . . . . 322--341
Robert A. Millikan Albert Einstein on His Seventieth
Birthday . . . . . . . . . . . . . . . . 343--345
L. de Broglie L'Oeuvre d'Einstein et la Dualité des
Ondes et des Corpuscules . . . . . . . . 345--347
M. von Laue Zu Albert Einsteins 70-tem Geburtstag 348--349
Philipp Frank Einstein's Philosophy of Science . . . . 349--355
M. S. Vallarta Galactic Rotation Effect and the Origin
of Cosmic Radiation . . . . . . . . . . 356--356
Georges Lema\^\itre Cosmological Application of Relativity 357--366
G. Gamow On Relativistic Cosmogony . . . . . . . 367--373
Anonymous The Age of the Universe . . . . . . . . 374--378
H. P. Robertson Postulate versus Observation in the
Special Theory of Relativity . . . . . . 378--382
S. Chandrasekhar Brownian Motion, Dynamical Friction, and
Stellar Dynamics . . . . . . . . . . . . 383--388
A. H. Taub A Special Method for Solving the Dirac
Equations . . . . . . . . . . . . . . . 388--392
P. A. M. Dirac Forms of Relativistic Dynamics . . . . . 392--399
T. D. Newton and
E. P. Wigner Localized States for Elementary Systems 400--406
A. D. Fokker On the Space--Time Geometry of a Moving
Rigid Body . . . . . . . . . . . . . . . 406--408
L. Infeld and
A. Schild On the Motion of Test Particles in
General Relativity . . . . . . . . . . . 408--413
E. G. Straus Some Results in Einstein's Unified Field
Theory . . . . . . . . . . . . . . . . . 414--420
J. A. Schouten On Meson Fields and Conformal
Transformations . . . . . . . . . . . . 421--424
John Archibald Wheeler and
Richard Phillips Feynman Classical Electrodynamics in Terms of
Direct Interparticle Action . . . . . . 425--433
W. Pauli and
F. Villars On the Invariant Regularization in
Relativistic Quantum Theory . . . . . . 434--444
A. Pais and
S. T. Epstein Note on Relativistic Properties of
Self-Energies . . . . . . . . . . . . . 445--446
Kurt Gödel An Example of a New Type of Cosmological
Solutions of Einstein's Field Equations
of Gravitation . . . . . . . . . . . . . 447--450
H. J. Bhabha On the Postulational Basis of the Theory
of Elementary Particles . . . . . . . . 451--462
Max Born Reciprocity Theory of Elementary
Particles . . . . . . . . . . . . . . . 463--473
Hideki Yukawa Models and Methods in the Meson Theory 474--479
Peter G. Bergmann and
Johanna H. M. Brunings Non-Linear Field Theories II. Canonical
Equations and Quantization . . . . . . . 480--487
V. Bargmann On the Connection between Phase Shifts
and Scattering Potential . . . . . . . . 488--493
Giulio Racah On the Decomposition of Tensors by
Contraction . . . . . . . . . . . . . . 494--496
Cornelius Lanczos Lagrangian Multiplier and Riemannian
Spaces . . . . . . . . . . . . . . . . . 497--502
Nathan Rosen A Particle at Rest in a Static
Gravitational Field . . . . . . . . . . 503--505
James Franck and
Robert Livingston Remarks on Intra- and Inter-Molecular
Migration of Excitation Energy . . . . . 505--509
R. Ladenburg and
D. Bershader On Laminar and Turbulent Boundary Layer
in Supersonic Flow . . . . . . . . . . . 510--515
Theodore von Kármán and
C. C. Lin On the Concept of Similiarity in the
Theory of Isotropic Turbulence . . . . . 516--519
Hans Albert Einstein and
El-Sayed Ahmed El-Samni Hydrodynamic Forces on a Rough Wall . . 520--524
W. J. de Haas and
G. J. van den Berg On the Transfer Rate of the
Rollin--Simon Film . . . . . . . . . . . 524--526
Karl F. Herzfeld Nodal Surfaces in Molecular Wave
Functions . . . . . . . . . . . . . . . 527--530
O. Klein On the Thermodynamical Equilibrium of
Fluids in Gravitational Fields . . . . . 531--533
Otto Stern On the Term $k \ln n!$ in the Entropy 534--535
Banesh Hoffmann Kron's Non-Riemannian Electrodynamics 535--540
Charles Kittel Physical Theory of Ferromagnetic Domains 541--583
Walker Bleakney and
A. H. Taub Interaction of Shock Waves . . . . . . . 584--605
N. C. Gerson Nocturnal Ionization in the F$_2$
Ionospheric Region . . . . . . . . . . . 606--624
Harrison Brown A Table of Relative Abundances of
Nuclear Species . . . . . . . . . . . . 625--634
A. O. Hanson and
R. F. Taschek and
J. H. Williams Monoergic Neutrons from Charged Particle
Reactions . . . . . . . . . . . . . . . 635--650
J. W. M. DuMond and
E. Richard Cohen Our Knowledge of the Atomic Constants
$F$, $N$, $m$, and $h$ in 1947, and of
Other Constants Derivable Therefrom . . 651--652
Emilio Segré and
A. C. Helmholz Erratum: Nuclear Isomerism . . . . . . . 237--237