Document j6GdpZQmBGopJQoMD3OKZnVk

D e pa r t m e n t o f In d u st r ia l H y g ie n e HARVARD UNIVERSITY SCH OOL OF PUBLIC H EALTH 55 Shattuc\ Street `Boston 15, J Massachusetts March 12, 134? D r . P.obert A. Krh oe . Ket t er in g Ilaboratory rn i "e r s i t y o f C i n c i n n a t i Cin cin n at i IP , Ohio Dear Dr. Ksh ce: Th an ks v e r y nuch f o r you r good l e t t e r o f March 2 0 t h , The ari'a.n cemen t you p r op ose se e n s t c me e n t i r e l y r e a so n a b l e . I w i l l l e t you k n ar i f vre. he vs an y f u r t h e r i d e a s . * -7 - C C : . lT* L. *. c-' j . U.CJ2 P h ilip Drinker HE 0015227