Document k98EoeRg5JNm5M7496v5v9EXB

\ NATI ONAL AI R POLLUTI ON CONTROL ADMI NI STRATI ON . DEP ARTM ENT O F H EALTH . EDUCATIO N. AND W ELFARE . PUBLI C H EALTH SERV I CE CO N SU M ER PROTECTI ON AN D EN V I RO N M EN TAL H EA LT H SERV I CE 801 North Randolph Street, Arlington, Virginia 22203 March 17, 1969 Dr. R. A. Kehoe Kettering Laboratory University of Cincinnati College of Medicine Eden and Bethesda Avenue Cincinnati, Ohio 45219 Dear Dr. Kehoe: Since Dr. Epstein will be away from his office for the rest of the month, he has asked me to write to you regarding his need to receive txTO copies of your preprint by April 1, 1969. As you know, your presentation will be followed by a prepared critique. Accordingly, it is essential that the discussant be given sufficient time to adequately evaluate your article. In my letter of invitation to the discussants, I assured them that they would have a month, from April 1, to May 1, to prepare their comments. I know you will cooperate with us in our effort to conduct a set of high-quality sessions on air quality. Thank you. Sincerely yours. Emanuel Landau, Ph.D. ^/ilember, TR-8, Biological Effects Committee of APCA KE 0019678