Document gED1YQZk8gVb3823b6eZQwn0Q

THE UNIVERSITY OF BRITISH COLUMBIA V A N CO U V ER 8, CA N A D A DEPARTMENT OF GEOLOGY Jan u ar y 8, 1961;. Dr. Robert A. Kehoe, H .D., Department of P reven tive Medicin e, and I n d u st r ia l H ealth , U n iver sit y <f Cin cin n at i, cq ;ciou; An , o h i o . Dear Dr. Kehoe: I th ough t you might be in t e r e st e d in seein g cur l a t e s t p u b lic at io n . I th in k you - .ill have seen some p a r t s of i t , but I t r u st you fin d th e whole p r esen t at ion sa t isfa c t o r y . Kin dest r egar d s. Yours sin ce r e ly , 1M11L Harry S' Warren, P r o fe sso r , Department of Geology. <'/. I' ' yi KVW/w #117 i 00532