Table of Contents

• Gerard P. Kuiper

On the Evolution of the Protoplanets

• C. Adrian M. Hogben

The Chloride Transport System of the Gastric Mucosa

• A. Michael Michelson,
• William Drell,
• and Herschel K. Mitchell

A New Ribose Nucleoside from Neurospora: “Orotidine”

• Hugh H. Hotson
• and Victor M. Cutter, Jr.

The Isolation and Culture of Gymnosporangium Juniperi-Virgininae Schw. Upon Artificial Media

• Sui Tong Fung
• and Curt Stern

The Seration of Fourth Chromosome Loci in Drosophila Melanogaster

• A. H. Sturtevant

A Map of the Fourth Chromosome of Drosophila Melanogaster, Based on Crossing Over in Triploid Females

• Donald F. Jones

The Cytoplasmic Separation of Species

• G. Birkhoff,
• D. M. Young,
• and E. H. Zarantonello

Effective Conformal Transformation of Smooth, Simply Connected Domains

• R. P. Boas, Jr.

Partial Sums of Fourier Series

• J. M. Cook

The Mathematics of Second Quantization

• Bent Fuglede
• and Richard V. Kadison

On a Conjecture of Murray and von Neumann

• Bent Fuglede
• and Richard V. Kadison

On Determinants and a Property of the Trace in Finite Factors

• F. I. Mautner

A Generalization of the Frobenius Reciprocity Theorem

• A. N. Milgram
• and P. C. Rosenbloom

Heat Conduction on Riemannian Manifolds: II: Heat Distribution on Complexes and Approximation Theory

• Francis D. Murnaghan

A Generalization of Hermite's Law of Reciprocity

• Francis D. Murnaghan

The Dimensions of the Irreducible Representations of a Finite Group

• Horace S. Uhler

Approximations Exceeding 1300 Decimals for √3, 1/√3, Sin (π/3) and Distribution of Digits in Them

• Richard W. Lippman
• and Helen U. Marti

The Relation of Adrenal Hormones to the Pathogenesis of Experimental Nephritis

• Julian Schwinger

On the Green's Functions of Quantized Fields: I

• Julian Schwinger

On the Green's Functions of Quantized Fields: II

• A. Engström
• and F. Ruch

Distribution of Mass in Salivary Gland Chromosomes

The Jacobson Radical of a Semiring