Volume 34, Issue 21

B. H. Ripin, P. G. Burkhalter, F. C. Young, J. M. McMahon, D. G. Colombant, S. E. Bodner, R. R. Whitlock, D. J. Nagel, D. J. Johnson, N. K. Winsor, C. M. Dozier, R. D. Bleach, J. A. Stamper, and E. A. McLean

Phys. Rev. Lett. 34, 1313 (1975) - Published 26 May, 1975

Internal Kink Mode in a Diffuse Pinch with a Noncircular Cross Section

Guy Laval

Phys. Rev. Lett. 34, 1316 (1975) - Published 26 May, 1975

Solids

Determination of X-Ray Photoemission Line-Shape Asymmetries from Threshold Exponents

John D. Dow and Donald R. Franceschetti

Phys. Rev. Lett. 34, 1320 (1975) - Published 26 May, 1975

Anisotropic Optical Properties of Heavy-Rare-Earth Single Crystals

J. H. Weaver and D. W. Lynch

Phys. Rev. Lett. 34, 1324 (1975) - Published 26 May, 1975

Direct Observation of Superlattice Formation in a Semiconductor Heterostructure

R. Dingle, A. C. Gossard, and W. Wiegmann

Phys. Rev. Lett. 34, 1327 (1975) - Published 26 May, 1975

Direct Measurement of One-Dimensional Plasmon Dispersion and Damping

J. J. Ritsko, D. J. Sandman, A. J. Epstein, P. C. Gibbons, S. E. Schnatterly, and J. Fields

Phys. Rev. Lett. 34, 1330 (1975) - Published 26 May, 1975

Bonding and Antibonding Potentials in Group-IV Semiconductors

Robert W. Keyes

Phys. Rev. Lett. 34, 1334 (1975) - Published 26 May, 1975

Effect of Relaxation and Reconstruction on the Electronic-Energy-Level Structure of the Si(111) Surface

I. P. Batra and S. Ciraci

Phys. Rev. Lett. 34, 1337 (1975) - Published 26 May, 1975

Sputtering of Nb and Au by ( $d, t$ ) Neutrons

O. K. Harling, M. T. Thomas, R. L. Brodzinski, and L. A. Rancitelli

Phys. Rev. Lett. 34, 1340 (1975) - Published 26 May, 1975

Electronic Band Structure, Bonding, and Ionicities of Polymorphous Thallous Halides

J. Treusch

Phys. Rev. Lett. 34, 1343 (1975) - Published 26 May, 1975

Optically Induced Localized Paramagnetic States in Chalcogenide Glasses

S. G. Bishop, U. Strom, and P. C. Taylor

Phys. Rev. Lett. 34, 1346 (1975) - Published 26 May, 1975

Nuclei

High-Spin States in ${}^{20}F$

J. N. Bishop and H. T. Fortune

Phys. Rev. Lett. 34, 1350 (1975) - Published 26 May, 1975

Elementary Particles and Fields

Superdense Matter: Neutrons or Asymptotically Free Quarks?

J. C. Collins and M. J. Perry

Phys. Rev. Lett. 34, 1353 (1975) - Published 26 May, 1975

Quantum Numbers and Decay Widths of the $ψ (3095)$

A. M. Boyarski et al.

Phys. Rev. Lett. 34, 1357 (1975) - Published 26 May, 1975

ERRATA

Resonant X-Ray Raman Scattering

Yigal B. Bannett and Isaac Freund

Phys. Rev. Lett. 34, 1360 (1975) - Published 26 May, 1975

Physical Review Letters

Volume 34, Issue 21

LETTERS

Atoms, Molecules, and Related Topics

Observation of Coherent Transient Birefringence in C $S_{2}$ Vapor

Molecular Quadrupoles and Atomic Shielding Factors

Resonance Raman Scattering and Collision-Induced Redistribution Scattering in $I_{2}$

$K$ -Shell Fluorescence Yield of Multiply Ionized Ne

Plasmas, Fluids, Thermodynamics, and Related Topics

X-Ray Emission Spectra from High-Power-Laser-Produced Plasmas