Volume 37, Issue 22

B. G. Logan, J. F. Clauser, F. H. Coensgen, D. L. Correl, W. F. Cummins, C. Gormezano, A. W. Molvik, W. E. Nexsen, T. C. Simonen, B. W. Stallard, and W. C. Turner

Phys. Rev. Lett. 37, 1468 (1976) - Published 29 November, 1976

Condensed Matter: Structure, Etc.

Critical-Temperature and Coexistence-Curve Measurements in Thick Films

D. T. Jacobs, R. C. Mockler, and W. J. O'Sullivan

Phys. Rev. Lett. 37, 1471 (1976) - Published 29 November, 1976

Longitudinal Optical Vibrations in Glasses: Ge $O_{2}$ and Si $O_{2}$

F. L. Galeener and G. Lucovsky

Phys. Rev. Lett. 37, 1474 (1976) - Published 29 November, 1976

"Critical" Slowing Down at the Roughening Transition

Robert H. Swendsen

Phys. Rev. Lett. 37, 1478 (1976) - Published 29 November, 1976

Experimental Determination of the Critical Correlation Function for a Binary Liquid Mixture: Evidence for Universality

R. F. Chang, H. Burstyn, J. V. Sengers, and A. J. Bray

Phys. Rev. Lett. 37, 1481 (1976) - Published 29 November, 1976

Stability of Persistent Currents in Unsaturated Superfluid ${}^{4}{He}$ Films

Kenneth L. Telschow and Robert B. Hallock

Phys. Rev. Lett. 37, 1484 (1976) - Published 29 November, 1976

Pressure Shifts of KCl $F$ -Center Hyperfine-Interaction Parameters

A. B. Wolbarst and R. D. Zwicker

Phys. Rev. Lett. 37, 1487 (1976) - Published 29 November, 1976

Condensed Matter: Electronic Properties, Etc.

High-Field Nuclear Relaxation of ${}^{173}{Yb}$ in Dilute $Au Yb$ Alloys: Evidence for Anisotropic Conduction-Electron Exchange

D. M. Follstaedt and A. Narath

Phys. Rev. Lett. 37, 1490 (1976) - Published 29 November, 1976

Linear Combination of Atomic Orbitals Model for the Electronic Structure of $H_{2}$ on the W(001) Surface

N. V. Smith and L. F. Mattheiss

Phys. Rev. Lett. 37, 1494 (1976) - Published 29 November, 1976

Orientation of CO on Pt(111) and Ni(111) Surfaces from Angle-Resolved Photoemission

G. Apai, P. S. Wehner, R. S. Williams, J. Stöhr, and D. A. Shirley

Phys. Rev. Lett. 37, 1497 (1976) - Published 29 November, 1976

Nonlinear Transport in Tetrathiafulvalene-Tetracyanoquinodimethane (TTF-TCNQ) at Low Temperatures

Marshall J. Cohen, P. R. Newman, and A. J. Heeger

Phys. Rev. Lett. 37, 1500 (1976) - Published 29 November, 1976

Valence-Alternation Model for Localized Gap States in Lone-Pair Semiconductors

Marc Kastner, David Adler, and H. Fritzsche

Phys. Rev. Lett. 37, 1504 (1976) - Published 29 November, 1976

Postulated Electronic Phase Diagram of $n$ -Type Semiconductors

A. Holz and K. H. Bennemann

Phys. Rev. Lett. 37, 1507 (1976) - Published 29 November, 1976

Itinerant $f$ -Electron Antiferromagnetism in Np ${Sn}_{3}$

R. J. Trainor, M. B. Brodsky, B. D. Dunlap, and G. K. Shenoy

Phys. Rev. Lett. 37, 1511 (1976) - Published 29 November, 1976

COMMENTS

Comment on the Reported Evidence for Primordial Superheavy Elements

F. Bosch, A. El Goresy, W. Krätschmer, B. Martin, B. Povh, R. Nobiling, K. Traxel, and D. Schwalm

Phys. Rev. Lett. 37, 1515 (1976) - Published 29 November, 1976

Commensurate Ordering in Tetrathiafulvalene-Tetracyanoquinodimethane

A. Bjeliš and S. Barišić

Phys. Rev. Lett. 37, 1517 (1976) - Published 29 November, 1976

Physical Review Letters

Volume 37, Issue 22

LETTERS

Elementary Particles and Fields

Production of Massive Muon Pairs by 300- and 400-GeV Protons

When is the Deuteron Six Quarks?—Possible Evidence Against Dimensional Scaling

Nuclei

Analysis of ${}^{12}C$ + ${}^{12}C$ Scattering and the Depth of the Real Potential

Calculated Half-Lives of Superheavy Nuclei near ${}^{354}{[126]}$

Atoms and Molecules

Resolution of $| m_{l} |$ and $| m_{j} |$ Levels in the Electric Field Ionization of Highly Excited $d$ States of Na

Fluids, Plasmas, and Electric Discharges

High- $β$ , Gas-Stabilized, Mirror-Confined Plasma