Re he dm OT ede Oe cade 3 Presentation at colloquium at the State University of New York, Buffalo, April 25: “Pion Production in NucleonNucleon Collisions at Threshold” by R. R. Silbar, M. E. Schillaci, and J. E. Young, all T-9 Presentation at Health Physics Training Course in Rockville, Md., April 23: “Air Sampling and Respiratory Protection” by H. F. Schulte, H-5 Presentation at meeting of Albuquerque Heights Lions Club, April 24: “Project Rover and the LAMPF” by R. W. Henderson, H-8 Presentation at Sherwood Theory Meeting, Gatlinburg, Tenn., April 24-25: “Nlumerical Simulation of a Fire Hose Type Instability” by D. O. Dickman, C-4, R. L. Morse and C. W. Nielson, both P-18 “Two-Dimensional Numerical Simulation of Warm Two-Beam Plasma” by C. W, Nielson and R. L. Morse, both P-18 Presentation at American Physical Society Meeting, Washington, D.C., April 28-May 1: “Decay of 115Te” by L. M. Beyer, Murray State University, Ky., G. J. Berzins and J. W. Starner, both P-2 “Energy Levels in }©°Ru” by G. J. Berzins, M. E. Bunker, and J. W. Starner, all P-2 “Fission Probability for the *4Pu (p, p’f) Reaction” by S. C. Burnett and H. C. Britt, both P-DOR, and J.D. Cramer, W-8 “Measurements of the (Pit, pp) Reaction in p-Shell Nuclei” by R. L. Burman, MP-6, and M. E. Nordberg, Wilson Lab., Cornell Ithaca, N.Y. University, “NMR Studies of Indirect BismuthFluorine Coupling in Poiyerystalline KBiF,” by E. Fukushima and S. H. Mastin, both CMF-4 “Nuclear Longitudinal Relaxa- tion Times in HCP Hydrogen” byL. |. Amstutz, S$. M. Myers, H. Meyer, all Duke University, Durham, N.C., and R. L. Mills, CMF-9 “Pion Elastic Scattering from 9 Carbon and Oxygen at 30 MeV” by J. F. Marshall, Xerox Corp., Rochester, N.Y., R. L. Burman, MP-6, and £E. Nordberg, Wilson Lab., Presentation at Southern Area Re- search and Development Safety Symposium, Laboratory, Oak Ridge National Oak Ridge, Tenn., Cornell University, Ithaca, N.Y. “Pion Production in NucleonNucleon Collisions” by C .T. Grant, April 29: “Handling and Use of Cryogen- all T-9 “ppd Pi+ at High Energies” by R. R. Silbar and F. UchiyamaCampbell, both T-9 “Resonance Neutron Capture Gamma-Ray Spectra of Cu” by W. E. Stein, P-DOR, B. W. Thomas and E. R. Rae, both Atomic Energy Research Establishment, Harwell, En- Presentation at Space Science Seminar at the University of Denver, Colo., April 30: “The Plasma Sheet in the Earth’s Magnetotail” by E. W. Hones, Jr., M. E. Schillaci, and R. R. Silbar, gland “The Stabilizing Effects of a DC Magnetic Field on the Dense Plasma Focus” by P. J. Bottoms, J. W. Mather, J. P. Carpenter, A. H. Williams, and K. D. Ware, all P-7 “Supercollimation of Negative lon Beams with Apertures” by D. D. Armstrong, P-12, and H. E. Wegner, Brookhaven National Lab., Upton, N.Y. ics” by R. Reider, H-3 P-4 Presentation at Colloquium at Loop College, Chicago,IIl., May 2: “Pulsars and Quasars: The Current State of Enlightenment and Confusion” by D. 5. De Young, J-10 Presentation on Channel 5, University of New Mexico, Albuquerque, May 2: “Cryogenics and Cryogenic Engineering” by F. J. Edeskuty, CMF-9 and Presentation at Second Annual Rocky Mountain Applied Mechanics Symposium, Air Force Academy, Colorado Springs, Colo., May 2: Presentation at technical symposium and short course of the New Mexico Chapter of the American Vacuum “Young’s Modulus Measurements to 2,500°C by the Thin Rod Resonance Technique” by C. R. Saunders and J. W. Neudecker, both N-7 “Theoretical Complex Atomic Calculations Structure of Spectra” by R. D. Cowan, T-DOT (invited) Society, Los Alamos, April 28-30: “Determination of Surface Oxygen and Carbon by Helium 3 Bombardment” by B. K. Barnes, W. M. Sanders, and D. M. Holm, all K-1 “Improved Tee Connections for Vacuum Systems” by H. M. Ruess, K-1 “Molecular Beams from Long Parallel Tubes” by J. P. Brainard, Presentation at seminar, Physics Division, Oak Ridge National La- boratory, Oak Ridge, Tenn., May 2: “Recent Progress in the Study of Spontaneously Fissioning isomers” by S. C. Burnett, P-DOR Presentation at American Ceramic Society Meeting, Washington, D.C., May 4-5: K-3 “Monte Carlo Analysis of Specular and Surface-Diffusional Contributions to Flow from Knudsen “Plane Stress Waves in Some Refractory Compounds” by J. W. Taylor and J. W. Hapson, GMX-6 C-4 “Some Effects of a Temperature Gradient on Knudsen Effusion” by E. K. Storms, CMB-3 “The Surface as a Vacuum 5, and at the State University of lowa, Ames, May 6: Orifices” by J. W. Ward, CMF-5, R. L. Bivins, C-7, and M. V. Fraser, Parameter” by J. P. Brainard, K-3 Presentation at colloquium at the University of lowa, lowa City, May “The Failure of Soft-Pion Tech- niques for Pionic Disintegration of the Deuteron at Threshold” by R. R. Silbar and M. E. Schillaci, T-9 23