Document Emx7YYB59dLBQVk6B5Q7JbD8R

E T H Y L CORPORATION R e s e a r c h a x d De v e t o e m e n t De p a r t m e n t M arch 4, 1968 PLEASE ADDRESS REPLY TO r P . O . BOX 341 BATON RO U G E, LA. 70821 STR IC TLY CO NFID EN TIA L D r. R. A. Kehoe C ollege of M edicine K ettering L ab o rato ry Eden Avenue C in c in n a ti, O hio of A pplied P hysiology D ear D r. K ehoe: A tta c h e d a r e co p ies of th e in fo rm a tio n I p ro m ise d to send you. P lease re tu rn D r. F irs t's re p o rt w hen you are through w ith it. Thank you again fo r your h o sp itality during m y v isit to C in cin n ati. ' D E P :jht f!Y o u r s v e r y t r u l y , /P. D. E. P a rk , S u p erv iso r M fg. T ech n ical S erv ice s A ttachm ents 00026n