Document MGV797vOvV7DN9a6RVoemK5Ra

E N - A R - C O M O T O R O ,l E N-AP-CO G E A R LU BR IC AN T N A T IO N A L LIGHT K E R O S E N E W H IT E P O W HIT E ROYAL E GASOLINE ;S E F TH Y L VA S O L I N t: Th e Na t i o n a l Re f i n i n g Co mp a n y ` T ?0 / . - t / A 4 A A / a / T S ^ / ?0 > V C T S MANNA BUILDING Cl evel and Ohio USA May 1 9 , 1937. D r . Rob er t A. Keh oe, U n iversity of Cin cin n ati, Cin cin n ati , Ohio* Dear S i r s - We viish t o th an k you f o r you r l e t t e r o f May 11t h giv in g u s in fo r m at io n on t h e sk in t r o u b le con t r a c t e d by st a t io n o p e r a t o r a t A u st in , Minn* Very t r u ly you rs, THE NATIONAL REFINING COMPANY CAPjGW Ch ief Chemical En gin eer. oo