. .1 . -. i 1 f“ ... /, (.. Identical Letters Sent To: Dr. W. J. Bair Manager, Biomedical and Environmental Research Program Pacific Northwest Laboratory i:-(j”Box 999 Richland, Washington 99352 Dr. Roy Thompson Biology Department Pacific Northwest Laboratory P. O. Box 999 Richland, Washington ,* 99352 Dr. Roger McClellan Director, Inhalation Toxicology ‘ Research Institute Lovelace Foundation for Medical Education and Research P. O. 60X 5890 Albuquerque, New Mexico 87115 . Dr. Jack Healy Health Division Alamnc - Scientific LaboratorY Q.. ------. ---- --—lfic P. O. BOX 1663 Los Alamos, New Mexico 87545 Dr. John Harley Director, Health and Safety Laboratory u.S. ERDA 376 Hudscm Street New York, New York 10014 “ Dr. William Templeton Pacific Northwest Laboratory p:~; Box 999 Richland, Washington 99352 Dr. Chester Francis Oak Ridge National Laboratory P. O. BOXX Oak Ridge, Tennessee 37830 .