Articles

Dielectric Properties of Semicrystalline Polychlorotrifluoroethylene
Arnold H. Scott, Donald J. Scheiber, Alexander J. Curtis, John I. Lauritzen, Jr., and John D. Hoffman

Thermal Degradation of Fractionated High and Low Molecular Weight Polystyrenes
S. L. Madorsky, D. Mclntyre, J. H. O'Mara, and S. Straus

Synthesis of 2-Propoxy-5-Methylbenzoic Acid
Gerhard M. Brauer and Lester Simon

The Gamma-Ray Distribution From Oriented Cerium-141
J. F. Schooley, D. D. Hoppes, and A. T. Hirshfeld

Light Source for Producing Self-Reversed Spectral Lines
Jack Sugar

A Diamond Cell for X-ray Diffraction Studies at High Pressures
G. J. Piermarini and C. E. Weir

Thermal Conductivity of Gases. I. The Coaxial Cylinder Cell
Leslie A. Guildner

Thermal Conductivity of Gases. II Thermal Conductivity of Carbon Dioxide Near the Critical Point
Leslie A. Guildner

Derivation of the Relaxation Spectrum Representation of the Mechanical Response Function
Robert S. Marvin

Intermediate Phases in Superconducting Niobium-Tin Alloys
L. L. Wyman, J. R. Cuthill# G. A. Moore, J. J. Park, and H. Yakowitz