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Publications in 1933

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A Theory of Water and Ionic Solution, with Particular Reference to Hydrogen and Hydroxyl Ions

On the basis of the model of the water molecule derived from spectral and x-ray data and a proposed internal structure for water, the following properties of water and ionic solutions have been deduced quantitatively in good agreement with experiment....

The Ground State of the Hydrogen Molecule

The method used by Hylleraas in treating the He atom has been extended to the H2 molecule. The method consists of setting up a wave function as a series in the five variables required, electronic separation being introduced explicitly as one of the variables....

The Collected Papers of Charles Sanders Peirce

Charles S. (Charles Sanders) Peirce, Charles Hartshorne, Paul Weiss

On an Algebraic generalization of the quantum mechanical formalism

Pascual Jordan, John von Neumann, E. P. Wigner

Monetary Theory and the Trade Cycle

Friedrich A. von (Friedrich August) Hayek, Nicholas Kaldor, H. M. Croome

Dispersion and Polarizability and the van der Waals Potential in the Alkali Halides

It is shown that the ultraviolet absorption of NaCl, KCl and KI, which one may estimate from recent experimental work, is in agreement with the dispersion of these salts. With these assumed absorption curves, the dipole‐dipole potential constant for...

Congenital anomalies of the coronary arteries: Report of an unusual case associated with cardiac hypertrophy

An instance is recorded, in a male infant dying at the age of three months, of an abnormal origin of the left coronary artery from the pulmonary artery, associated with marked enlargement of the heart (due to hypertrophy and dilatation of the left ventricle),...

The Nature of the Chemical Bond. V. The Quantum‐Mechanical Calculation of the Resonance Energy of Benzene and Naphthalene and the Hydrocarbon Free Radicals

The secular equations corresponding to the five canonical structures for benzene and the forty‐two for naphthalene, considered as six and ten‐electron systems, respectively, are set up and solved with certain simplifying assumptions, leading to energy...

The nature of the vascular communications between the coronary arteries and the chambers of the heart

By the employment of injection methods, it has been possible to demonstrate vascular communications between the coronary arteries and the chambers of the heart. Serial sections and wax-plate reconstructions of these communicating vessels revealed two...

Oil Lenses on Water and the Nature of Monomolecular Expanded Films

A higher hydrocarbon, such as tetradecane, on the surface of water forms a circular lens. The condition for the formation of such stable lenses is that the spreading coefficient FS = γ1 — γ2 — γ12 shall be negative. As the volume of the oil lens...

The calculation of matrix elements for Lewis electronic structures of molecules

Starting from the discovery by Rumer that the eigen‐functions corresponding to different distributions of valence bonds in a molecule can be represented by plane diagrams which provide information regarding their mutual linear independence, a very simple...

The Positive Electron

Carl D. Anderson

Interatomic Distances in Crystals of the Alkali Halides

The constants of the empirical repulsion potential assumed by Born and Mayer between two ions, which may be termed the ionic ``radii,'' are calculated for the alkali and halide ions from the lattice constants of the alkali halides. By using 9 such radii...

The Virial and Molecular Structure

The virial theorem can be applied to a molecule, assuming that external forces are applied to keep the nuclei fixed. The mean electronic kinetic energy is then the negative of the mean total internal energy, plus a term arising from the virial of the...

The Normal State of the Hydrogen Molecule

A simple wave function for the normal state of the hydrogen molecule, in which both the atomic and ionic configurations are taken into account, was set up and treated by a variational method. The dissociation energy was found to be 4.00 v.e. as compared...

On Minimum Audible Sound Fields

The minimum audible field (M.A.F.) has been determined from data taken on 14 ears over the frequency range from 100 to 15,000 c.p.s. The observer is placed in a sound field which is substantially that of a plane progressive wave, facing the source and...

Die höfische Gesellschaft

Analyse des rapports sociaux a la cour de France sous l'Ancien Regime. - These de sociologie redigee par l'auteur en vue de son habilitation a l'Universite de Francfort-sur-le-Main. - La prise du pouvoir par les nazis empecha l'auteur de la soutenir en...

The Lagrangian in quantum mechanics

The Lagrangian in quantum mechanics

On the Theory of the Structure of CH4 and Related Molecules: Part III

The primary purpose of the present series of papers is to give more explicit mathematical form to the theory of Mulliken and Hund, and in some instances to the alternative theories of Pauling and Slater and of Heitler and Rumer, for valence in carboncompounds....

The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel

An investigation of a large group of related airfoils was made in the NACA variable-density wind tunnel at a large value of the Reynolds number. The tests were made to provide data that may be directly employed for a rational choice of the most suitable...

The normal state of the helium molecule-ions He-2(+) and He-2(++)

With the use of wave functions constructed from hydrogen‐like single‐electron functions with an effective nuclear charge Z, the application of the variation method of treating the wave equation for the normal state of He2 +, involving a three‐electron...

THE CHEMICAL COMPOSITION OF THE HUMAN FETUS

Maurice H. Givens, Icie G. Macy

Some Thermodynamic Properties of the H1H2, H2H2 Molecules and Compounds Containing the H2 Atom

The summations of state and free energies of the molecules H2 1, H2 2 and H1H2 have been calculated at temperatures from 20.4 to 700°K and their dependence on the spin and statistics of H2 discussed and illustrated. The equilibrium constants of the reaction...

Diffusion and Electrolytic Conduction in Crystals (Ionic Semiconductors)

In the present paper a mechanism of diffusion and electrolyticconduction in solids is discussed, which is based on a formal treatment given by Frenkel. It is assumed that in a crystal in thermal equilibrium some of the atoms or ions are removed from their...

THE RELATIONSHIP BETWEEN LOUDNESS AND THE MINIMUM PERCEPTIBLE INCREMENT OF INTENSITY

Using previously reported data (Phys. Rev., Vol. 31, May, 1928) concerning the differential intensity sensitivity of the ear, the number of perceptible increments of intensity is calculated as a function of the intensity expressed in db above the auditory...

A NEW ANALOGY BETWEEN MECHANICAL AND ELECTRICAL SYSTEMS

By considering each mass in a linear mechanical system as having two terminals, one fixed in the mass and one fixed to the frame of reference, every linear mechanical system is reduced to a multiplicity of closed mechanical circuits to which, force and...

STUDIES ON A CERTAIN SPREADING FACTOR EXISTING IN BACTERIA AND ITS SIGNIFICANCE FOR BACTERIAL INVASIVENESS.

STUDIES ON A CERTAIN SPREADING FACTOR EXISTING IN BACTERIA AND ITS SIGNIFICANCE FOR BACTERIAL INVASIVENESS.

Analytic theory of singular difference equations

George D. Birkhoff, W. J. Trjitzinsky

De natura deorum

Marcus Tullius Cicero, Otto Plasberg

Development of the vagina in the human fetus.

Lack of uniformity of opinions concerning the development of the vag ina prompted an investigation into the successive stages of the vaginas developmental events. Observations on the material studied indicated: 1) that the upper part of the vagina develops...

Lifetimes of Unstable Molecules

The mechanism of the decomposition of a molecule formed by the collision between a molecule and another particle is discussed qualitatively. Calculations are then carried through to determine the lifetime of a simple linear triatomic molecule formed by...

The Lattice Energies of the Silver and Thallium Halides

The lattice energies and lattice constants of the silver and thallium halides are calculated assuming ionic crystals with a van der Waals potential. The latter term, which is large, accounts for the low solubilities (high lattice energies) of the salts....

The Chemical Nature of Vitamin C

To verify the results of their 1932 study, which indicated that "hexuronic acid" was in fact vitamin C, Szent-Gyorgyi and Svirbely ran additional tests with guinea pigs, using vitamin C derived from a new source, the red peppers used to make paprika...

Electronic Structures of Polyatomic Molecules and Valence. V. Molecules RXn

Theory. The approximate construction, for shared electrons in molecules RX n , of molecular orbitals (``orbital'' means one‐electron orbital wave function) as linear combinations of atomic orbitals is discussed and illustrated by equations for RX2,...

The reptilian optic tectum

G. Carl Huber, Elizabeth Caroline Crosby

Transport Phenomena in Einstein-Bose and Fermi-Dirac Gases. II

Transport Phenomena in Einstein-Bose and Fermi-Dirac Gases. II

The Size-Distribution of Heavy Minerals Within a Water-Laid Sandstone

The factors that control the distribution of heavy minerals in natural sandstones are so numerous and complex that their separate effects are difficult or even impossible to untangle. However, a theoretical approach to the problem indicates something...

Ultra-Short-Wave Propagation

Part I of this paper first describes a method of measuring attenuation and field strength in the ultra-short-wave range. A resume of some of the quantitative experiments carried out in the range between 17 megacycles (17 meters) and 80 megacycles (3.75...

The Derivation of Equations for Regular Solutions

The probability function of Menke has been used as a basis for a statistical treatment of the intermolecular potentials in solutions of symmetrical molecules for which the entropy of mixing is the same as for an ideal solution of the same composition....

Predissociation and the Crossing of Molecular Potential Energy Curves

The calculation of the width and shape of a line which is broadened because of predissociation has been extended so as to include perturbations of intermediate size. By ``perturbations of intermediate size'' we mean perturbations which are not so great...

On Compton's Latitude Effect of Cosmic Radiation

Georges Lemaitre, Manuel Sandoval Vallarta

Fresh: water algae of the United States

J. H. Hoskins, Gilbert S. Smith

Psychology of sex

Havelock Ellis

Behavior of Vortex Systems

Progressive application of the Kutta-Joukowsky theorem to the relationship between airfoil lift and circulation affords a number of formulas concerning the conduct of vortex systems. The application of this line of reasoning to several problems of airfoil...

The circulation time in various clinical conditions determined by the use of sodium dehydrocholate

1. 1. The several methods proposed for the determination of the velocity of blood flow or circulation time and the results obtained are reviewed.2. 2. A simple procedure utilizing the injection of sodium dehydrocholate (decholin-sodium) is outlined for...

The colorimetric determination of vitamin A by the alkali digestion method

The colorimetric determination of vitamin A by the alkali digestion method

The Nature of the Chemical Bond. VII. The Calculation of Resonance Energy in Conjugated Systems

The quantum‐mechanical treatment previously applied to benzene, naphthalene, and the hydrocarbon free radicals is used in the calculation of extra resonance energy of conjugation in systems of double bonds, the dihydronaphthalenes and dihydroanthracenes,...

An absorption apparatus for the micro-determination of certain volatile substances: The determination of urea and ammonia in body fluids.

An absorption apparatus for the micro-determination of certain volatile substances: The determination of urea and ammonia in body fluids.

ANEMIA OF INFANCY FROM MATERNAL IRON DEFICIENCY IN PREGNANCY 123

ANEMIA OF INFANCY FROM MATERNAL IRON DEFICIENCY IN PREGNANCY 123

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