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UNIVERSITYof ILLINOIS COLLEGE of AGRICULTURE AGRICULTURAL EXPERIMENT STATION URBANA,ILLINOIS Depa r t men t of A n im a l H u s b a n d r y J u l y 3^ 19 4 0 Dr.

J* De pa r t me n t of H o r t ic u l t u r e U N I VE R S I T Y / I LLI N O I S COLLEGE o f AGRICU LTU RE AGR I CU LTU R AL E XP E R I M E N T STATION URBANA, I LLINOIS May 2 3 , 1939 Dr.

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E TH YL CORPORATION lO O P A R K A V E N U E N E W Y O R K 17, N .

BUREAU OF s t a t e : s e r DEP ARTM EN T OF H EALTH , ED U CATI O N , AND W ELFARE PUBLIC H E ALTH SERVICE W A S H I N G T O N 15 , D.

N13240 as an outgrow th o f ex p e rim e n ta l work on le a d a b s o rp tio n and le a d p o iso n in g w hich had been c a r r ie d on in the D epartm ent of P h ysiology s in c e 19^5* The la b o ra to ry b u ild in g and i t s fix e d equipm ent were made p o s s ib le by a g i f t o f $130,000,00 made to th e U n iv e r s ity j o i n t l y by th e E th y l G aso lin e C o rp o ra tio n , E* I , duP ont de Nemours and Com pany,.

June 10, 1963 Professor Ronald E.

Th e Lo w e Br o t h e r s Go m pa n y ESTABLISHED 1072 Pa e n t m a k e r s -VAk n i s h m a k l r s DAYTON, OHIO, U .S.A.

February 4, 1944 19 Mrs.

FELIX EDGAR WORMSEB.p r e s i o e n t H.

ILmmIImitassi Associatimi ANDREW FLETCHER,PRESIDENT K.