Recent Papers

MECHANISM OF NUCLEAR FISSION. I

Our previous article set out in detail the history of the discovery of a new type of radioactive process—the fission of the uranium nucleus under the action of neutrons into two fragments of approximately equal mass. It also presented the main experimental facts established to date as a result of st…

Acad. P. P. Lazarev, _Fundamentals of Earth Physics_, ONTI, Editorial Office for Mining-Fuel and Geological-Prospecting Literature, 1939.

Book Review: Academician P. P. Lazarev. Fundamentals of Earth Physics.

G. V. Vinogradov and A. I. Krasilshchikov, _Atlas of Nomograms in Physical Chemistry_, State Publishing House of Technical-Theoretical Literature. Moscow—Leningrad. 1940. Price 50

THE NATURE OF THE METALLIC STATE[^1]

THE MESOTRON THEORY AND NUCLEAR FORCES[^1]

Report at the Conference on the Atomic Nucleus, organized by the Division of Physical and Mathematical Sciences of the Academy of Sciences of the USSR in Moscow, November 20–26, 1940.

E. V. Shpolsky, Moscow

Book Review: F. Rasetti. Fundamentals of Nuclear Physics.

ULTRAHIGH-FREQUENCY WAVES AND THEIR PRACTICAL APPLICATIONS[^1]

Refraction of Ultrashort Radio Waves in the “Undisturbed” Troposphere

P. W. Dankwort, Lumineszenzanalyse im filtrierten ultravioletten Licht, fourth enlarged edition, p. 241, Leipzig, 1940.

Book review: P. W. Dankwort, Luminescence Analysis in Filtered Ultraviolet Light.

ELECTRICAL CONDUCTIVITY OF METALS¹

Gases in the Plasma State. I¹

Methods for Determining Atomic Constants[^1]

IN MEMORY OF LEV VLADIMIROVICH MYSOVSKY

Thermal Theory of Combustion and Explosions

The book by the Bulgarian scholar Prof. Balarev, published last year, is a monograph devoted to the question of impurities in solid crystalline precipitates and to ways of avoiding

DEVELOPMENT OF THE PHOTOELASTICITY METHOD IN THE USSR

THEORY OF LIGHT SCATTERING AND ITS APPLICATION TO PROBLEMS OF ATMOSPHERIC AND FOG TRANSPARENCY

Metastable Excited States of Stable Nuclei

A NEW MANOMETER FOR MEASURING PRESSURES FROM 0.1 TO 190 mm Hg

FINE STRUCTURE OF HYDROGEN LINES. HISTORY AND CURRENT STATE OF THE THEORY[^1]

MODERN THEORY OF SOLIDS¹

ATOMIC CONSTANTS¹)

All-Union Conference on Problems in the Physics of the Atomic Nucleus

In November of last year, the Academy of Sciences of the USSR convened the fourth conference on problems of atomic nucleus physics in Kharkov.

Annotated List of Non-Periodical Literature on the Physical Sciences Published from December 16, 1939 to February 15, 1940

On the Theory of Ferromagnetism¹)

Contribution to the discussion on V. Gerlach’s report, printed in this issue.

LENINGRAD PHYSICOTECHNICAL INSTITUTE OF THE ACADEMY OF SCIENCES OF THE USSR

S. Chapman and T. G. Cowling, The mathematical theory of non-uniform gases. An account of the kinetic theory of viscosity, thermal conduction and diffusion in gases, 404 pp., 13 il

Quantum Yields and Spectral Sensitivity of Various Photocells

SOURCE OF A FOCUSED BEAM OF HYDROGEN AND HELIUM IONS[^1]

In Memory of Vsevolod Sergeevich Kazansky

Focusing of an Ion Beam and Ion Energy in a Cyclotron

INTERACTION OF ELEMENTARY PARTICLES

Electromagnetic Waves in Hollow Conductors and Dielectric Rods

On the Work of the Branches of the All-Union Hygiene Society

Correction to the Article New Photocells, UFN Vol. XXII, Issue 1 (1939)

On the Construction of Reservoirs on Collective Farms

NEW INSTRUMENTS

STUDY OF STRESSES BY THE METHOD OF PHOTOELASTICITY[^1]

CRYSTAL DEFECTS

Annotated List of Non-Periodical Literature on the Physical Sciences Published from February 16 to March 31, 1940

FERROMAGNETIC TRANSFORMATIONS[^1]

A lecture delivered at a meeting of the German Bunsen Society devoted to transitions from an ordered to a disordered state in solid and liquid phases. The meeting was held on October 28–29, 1938, at the Institute of Inorganic and Physical Chemistry of the Higher Technical School in Darmstadt.

A. F. Ioffe (On the Occasion of His Sixtieth Anniversary)

In Memory of N. K. Shchodro

ELECTRONIC MULTIPLIERS

N. Nikitin, Moscow

Sulfur Dioxide in Urban Air

New Books on Acoustics

STABILITY OF CRYSTAL LATTICES¹

Electron-Beam Generators of Ultrahigh-Frequency Oscillations

Annotated List of Non-Periodical Literature on the Physical Sciences Published from April 1 to May 20, 1940