Document myvZeeZxbyQQqQnoa6y753Lk

-- Z" : ..rti-y ;r- Au gu st 3I , 19 35 Di?. H. Xi Ryan 520 Commonwealth Avenue Boston , M ass. Dear Dp . Ryan s 1 Thank you f o r you r l e t t e r o f Au gu st 2 1 st r e l a t i v e t o Mr. ^ ^ ^ o f Framin gh am, Massach u se t t s. We were I n t e r e st e d t o n o t e t h a t you h ad p at ch t e st e d him w it h g a so l i n e . May X a sk in what d ilu t io n s t h e se t e s t s were c a r r ie d out and wh eth er or n ot whole gaso lin e or fr a c t io n s o f i t were u se d . We h ave been in t e r e st e d in t h is problem o f g a so lin e d e r m a t it is f o r som et im e , One o f th e g r e a t d i f f i c u l t i e s t h a t we h ave 1 ^ d i is^ - ln se c u r in g an ad equ at e method fo r t e st i n g th e Sk in o f se n sit iv e in d iv id u a ls* D ilu tion methods have n ot been e n t ir e ly sa t isfa c t o r y due to the fa c t apparen tly th at the solven t is n ot e ffe c t iv e in carryin g in to the sk in the sp e c ific ir r it a n t as are the ligh ter fraction s of gasolin e. We w i l l he v e r y much I n t e r e st e d in h e ar in g how you c a r r ie d Out th ese t e s t s . Th an kin g y o u , I am Very t r u ly y ou r s, WEMtis W illar d F . M ach le, M.D. \