Recent Papers

MODERN THEORIES OF METALLIC ELECTRICAL CONDUCTIVITY[^1]

Plant Remains of the Olonsky District

This paper describes a small and fragmentary collection of fossil plant impressions from sandstones of the Olon facies in the Irkutsk coal basin, recovered during geological work by M. K. Korovin’s party. Through comparative morphological study, the author identifies eight forms, including Jurassic …

Plant Remains from the Chernovskie Mines of Transbaikalia

This paper describes fossil plant remains collected from the roof strata of the main coal seam at the Chernovskie mines near Chita in Transbaikalia. On the basis of impressions preserved chiefly in argillites and sandstones, it identifies seven forms, including Equisetites, Coniopteris, Ginkgo, and …

Petukhov Soda Lakes

This paper describes the Petukhovo soda lakes in Slavgorod Uezd, Omsk Province, presenting field observations from 1925, historical information on earlier local use and attempted exploitation, and chemical analyses of lake waters. It distinguishes the three soda lakes from nearby salt lakes, records…

Recrystallization of Iron

This paper examines the recrystallization of low-carbon commercial iron, with particular attention to how prior plastic deformation, annealing temperature, heating time, and impurities affect grain growth. Using sheet iron and wire specimens, the authors apply controlled tensile deformation, heat tr…

Study of Marine Algae of Primorsky Oblast for the Industrial Production of Iodine and Potassium Salts from Them

This study examines marine kelp from the Primorsky Region as a potential domestic raw material for producing iodine and potassium salts, in the context of wartime shortages and reliance on imported iodine. The author analyzed multiple samples of air-dried Laminaria sacharina collected from several c…

Drying of Refined Sugar at Low Temperatures and Some Related Conclusions Regarding the Permissible Moisture Standard for Refined Sugar

This paper investigates weight losses observed in refined sugar shipped by rail to Siberia during winter despite intact wagons and packaging. Using commission weighings and laboratory moisture determinations of samples from several railway cars, it relates transport losses to uneven moisture content…

Yeast as a Feed, Food, and Therapeutic Agent

This article reviews the use of yeast as animal feed, human food, and a therapeutic agent, especially in response to wartime shortages of protein-rich resources. Drawing on feeding experiments, chemical analyses, digestibility studies, and wartime experience, it argues that brewer’s and specially dr…

Sampling of Tailings from Cyanide Plants

This paper examines the reliability of tailings assays used to determine gold recovery in cyanide plants, especially where solution sampling is impractical. It reviews discrepancies between extraction calculated from solutions and from tailings, then tests the behavior of the gold cyanide complex du…

Analysis of the Phenomenon of Sugar Dampening as a Guiding Basis for the Design and Maintenance of Sugar Warehouses

This paper examines the dampening, or sweating, of stored sugar as a practical problem in warehouse design and operation, with particular attention to Siberian climatic conditions. Drawing on prior studies of sugar deterioration, hygroscopicity, microorganisms, alkalinity, reducing substances, venti…

On the Catalytic Oxidation of Toluene

This paper investigates the direct vapor phase catalytic oxidation of toluene by atmospheric oxygen as a possible route to benzaldehyde, a reaction for which the authors find the existing literature insufficiently detailed. Toluene vapor and air were passed over pumice supported or related catalysts…

On the preparation of ?- and ?-dinitronaphthalene

This paper examines practical conditions for preparing 1,5 and 1,8 dinitronaphthalene by nitration of naphthalene, with attention to yield and isomer ratio. It compares published acid recipes with the author’s experiments, recalculating nitric acid, sulfuric acid, and water contents to assess their …

Dissolution Rate in a Heterogeneous System

This paper examines the rate of reactions in heterogeneous systems, especially dissolution and metal reactions in solution, against the background of the Noyes and Whitney, Nernst and Brunner, and Wildermann interpretations of dissolution kinetics. It develops an electrical conductivity method for f…

As regards particular passages in the book, I should like to draw attention to only two points.

Book review: A. Eichenwald. Electricity.

Distillation of Acetic Acid Solutions

This study reexamines vapor liquid equilibrium in aqueous acetic acid distillation, a problem important for calculating rectifying columns and marked by discrepancies in earlier measurements at high acid concentrations. Using a modified Rayleigh method, the author distilled small samples from approx…

Employee Compensation in Production

This article examines systems for compensating industrial workers as instruments for increasing labor intensity and productivity. It compares time wages, profit sharing, share ownership, and several bonus and premium systems, using formulas and graphical analysis to show how each affects earnings, l…

Intraformational disturbances caused by submarine sliding and tectonic processes

This paper compares intraformational disturbances produced by submarine sliding with those arising from tectonic deformation. Using a described Viséan exposure near Tomsk, where soft sandstone fragments occur as plastically deformed bodies within clayey sediment, the author argues for an origin by u…

Elephas primigenius Blum. and Bison priscus H. v. Meyer from the Area of the Kemerovo Mine on the Tom River

This paper describes a small but relatively complete fossil assemblage recovered in 1923 from sandy clay deposits at the Kemerovo coal mine on the Tom River. The author identifies two lower molars as belonging to an adult mammoth, Elephas primigenius, and provides detailed anatomical descriptions an…

Magmatic Rocks of the Kuznetsk Basin

Oxygen in Copper Smelting Mattes

This study investigates the unexplained deficit in complete analyses of factory copper smelting mattes, focusing on whether oxygen is an essential constituent rather than an accidental impurity. Using matte samples from several Ural and Siberian plants, the author compares analytical approaches, inc…

The outward appearance of the edition is very proper, but it hardly justifies the stated price.

Review: Edited by H. Geiger and Karl Scheel. Volume X. Thermal Properties of Substances.

The chapter on musical temperaments and scales has been compiled by the author very interestingly and fully.

NEW SEARCHES FOR THE “ETHER WIND”

The history of earlier attempts to detect the motion of the Earth in the “world ether” by optical and electrical methods can be found in many books and articles related to the theory of relativity. There is no need to recall it once again here. An account of the most recent works in the same directi…

BIBLIOGRAPHY[^1]

THE ATOMIC HYDROGEN FLAME¹

THE SOURCE OF STELLAR ENERGY[^1]

The last of three lectures at King's College (University of London), delivered on March 1, 1926.

New Principles of Bose–Einstein Statistical Mechanics in Connection with the Question of the Physical Nature of Matter

Structure des molecules

Review: V. Henri. Structure des molecules.

Conversion of Hydrogen into Helium[^1]

SOLAR RADIATION AND WEATHER FORECASTING¹

SCATTERING OF LIGHT IN THE ATMOSPHERE

Dependence of X-ray Spectra on the Chemical Bonding of Elements

THE ELECTRON AND THE LIGHT QUANTUM FROM AN EXPERIMENTAL POINT OF VIEW¹

BAND SPECTRA AND THE STRUCTURE OF MOLECULES.

In the question of the structure of molecules, spectroscopy is apparently destined to play the same principal, decisive role as in the question of the structure of the atom. The problem of molecular structure is developing in two mutually complementary directions: in the direction of theoretical inv…

PHYSICAL REGULARITY IN LIGHT OF NEW RESEARCH[^1]

Lecture at the academic courses in Düsseldorf on February 14, 1926.

B. A. Vvedensky. Physical Phenomena in Cathode Tubes

On Thin Transparent Metallic Foils

Quantum Mechanics¹

Translation of a report delivered at the 89th Congress of German Natural Scientists and Physicians in Düsseldorf in 1926.

ON ISOSTASY AND GRAVITY

This article, being a supplement to Prey’s review “The Theory of Isostasy, Its Development and Results,” published in “Advances in Physical Sciences” (Vol. VI, No. I), assumes the reader’s familiarity with the basic principles of the theory of isostasy.

THE PERIODIC SYSTEM, CHEMICAL BONDS, AND CRYSTAL STRUCTURE[^1]

One of the series of lectures “Atomic Physics,” delivered in London in March 1926.

A. A. Eichenwald. Theoretical Physics. Part I

A. P. Sokolov. Physics Practicum

A New Scale of Electromagnetic Waves

MEASUREMENT OF GRAVITY ON THE WATER SURFACE.

Ya. N. Shpilrein. _Vector Calculus._ A handbook for physicists and engineers. State Publishing House, Moscow, 1925. 324 pp.

Review: Ya. N. Shpilrein. Vector Calculus.

A New Repetition of the Michelson Experiment

Structure of the Atom and Bohr's Theory

Review: G. A. Kramers and H. Holst. The Structure of the Atom and Bohr’s Theory.

Attempts to Detect the Electrodynamic Effects of the Earth's Motion at High Altitudes

Abstract of the paper by R. Tomaschek, “On Experiments to Detect Electrodynamic Effects of the Earth’s Motion at Great Altitudes.”

COURANT—HILBERT. Methoden der Mathematischen Physik. Bd. 1, XIII+450, in 8°. Berlin, J. Springer, 1924.

Review: Courant–Hilbert. Methods of Mathematical Physics.

A. Sommerfeld. _Atomic Structure and Spectra._ Part I. Translated from the German under the editorship of A. F. Ioffe and P. I. Lukirsky. Pp. VIII + 403. State Publishing House, Mo

Review: A. Sommerfeld. Atomic Structure and Spectral Lines. Part I.