Volume 21, Issue 15

J. H. Bartley, R. Y. L. Chu, R. M. Dowd, A. F. Greene, J. Schneps, W. H. Sims, J. R. Albright, E. B. Brucker, J. E. Lannutti, B. G. Reynolds, M. Meer, J. E. Mueller, M. Schneeberger, and S. E. Wolf

Phys. Rev. Lett. 21, 1111 (1968) - Published 7 October, 1968

Search for Multipion Resonances with $I = 2$

W. Katz, T. Ferbel, P. Slattery, T. Yamanouchi, and H. Yuta

Phys. Rev. Lett. 21, 1114 (1968) - Published 7 October, 1968

Search for Resonance Formation in Antiproton-Proton Elastic Scattering from 1.6 to 2.2 GeV/c

J. Lys, J. W. Chapman, D. G. Falconer, C. T. Murphy, and J. C. Vander Velde

Phys. Rev. Lett. 21, 1116 (1968) - Published 7 October, 1968

Evidence for $Ξ^{*}$ Resonance with Mass 1930 MeV

J. Alitti, E. Flaminio, W. Metzger, D. Radojicic, R. R. Rau, N. P. Samios, I. Skillicorn, C. R. Richardson, D. Bassano, M. Goldberg, and J. Leitner

Phys. Rev. Lett. 21, 1119 (1968) - Published 7 October, 1968

Study of $Y_{1}^{*} {(1660)}^{\pm} \to Σ^{0} π^{\pm}$ (and $Λ π^{\pm}$ )

J. Button-Shafer

Phys. Rev. Lett. 21, 1123 (1968) - Published 7 October, 1968

Time Reversal and the $K^{0}$ Meson Decays

R. C. Casella

Phys. Rev. Lett. 21, 1128 (1968) - Published 7 October, 1968

ERRATA

Evidence for Linear Extrapolations of Baryon-Exchange Trajectories Through Particle Mass Spectra

V. Barger and D. Cline

Phys. Rev. Lett. 21, 1132 (1968) - Published 7 October, 1968

Physical Review Letters

Volume 21, Issue 15

LETTERS

Vibrational Excitation of C $O_{2}$ by Electron Impact

Microwave Light Modulation by an Optically Pumped ${Rb}^{87}$ Vapor

Electron Paramagnetic Resonance Absorption in Oxygen with the HCN Laser

Instabilities due to Magnetic Field Spatial Variations

Experimental Test of $H_{β}$ Stark-Broadening Theory at High Electron Densities

Experimental Test of $H_{β}$ Stark-Broadening Theory at High Electron Densities

Laboratory Observations of Plasma Satellites on the $2 {}^{1}P - 4 {}^{1}D$ and $2 {}^{3}P - 4 {}^{3}D$ Lines of Helium

Containment of Single Particles in Stellarators

Fluidlike Electron and Ion Modes in Inhomogeneous Plasmas

Isotope Effect of Superconducting $α - Uranium$

Experimental Observation of Depairing Phenomenon in Superconducting Tin Films

Different Effect of Cerium and Gadolinium Impurities on the Pressure Dependence of the Superconducting Transition Temperature of Lanthanum

Observation of a Thermodynamic Distinction Between Brillouin Zone Center and Boundary Exciton States in Mn $F_{2}$

Zeeman Effect and Symmetry of the Intrinsic Sn $O_{2}$ Exciton

Raman Scattering from InSb Surfaces at Photon Energies Near the $E_{1}$ Energy Gap

Anistropy of the Conduction-Electron $g$ Factor in Pt

Anomalous Critical-Field Temperature Effects in First-Order Magnetic Transitions

Specific Heat of Nearly Magnetic Centers in Pd:Ni Alloys

Singlet-Triplet Interactions in Crystalline Anthracene

Coherent Cosmic-Ray Model Based on "Direct" Muon Production

Potentials on Rotor Surfaces

Study of Inelastic Proton-Proton Scattering at 12.5 GeV/c

Differential Cross Sections in Eta Photoproduction from 0.8 to 1.45 GeV

Measurement of the Branching Ratio $\frac{(K_{L} \to γ γ)}{(K_{L} \to 3 π^{0})}$

Measurement of the Branching Ratio $\frac{(K_{L} \to 2 π^{0})}{(K_{L} \to 3 π^{0})}$

$Λ π π$ Structure from 1600 to 1740 MeV