Document VGYBrJ45XLMvRN72NLdN6KaOw

Jun e 3 , 1956 Dr. R. L. uh rixtar U n iversity o f I llin o is Department o f Uhexalstry Urbane, I llin o is Dear Dr. Sh rixsers Thanks vary muah fa r your n ote ooxsceraing lu b r ic at in g o i l bein g u sed aa an in se c t ic id e . I t i * ay opin ion t h at i t would tak e q u it e a good d e al o f le ad t o k i l l a cow, c e r t a in ly w ell over ten g r a ss. Four p e r cen t le ad i s p o ssib le in Uae lu b r ie a t - in g o i l , alth ough sc a t o f i t I s in th e fo r a o f so lid p a r t ic le s which s e t t le q u it e r ap id ly . Even on t h is b a sis "Bossy * roust d rin k soaseh er e in th e n eigh borh ood o f a h a lf p in t o f lu b r ic a t in g o il t o o b tain a le t h a l d ose o f le e d . Th is i s & lo t o f o i l fo r an y cow. ^ D esp ite th e above r o sar ie s, I m ost c e r t a in ly con sid er i t very dan gerous p r a c t ic e t o u se sp en t lu b r ic at in g o i l s which n ay con tain le a d . Even i f a lu b r ic at in g o i l d id n ot con tain lo a d , I am su re t h a t an y ap p r e ciab le q u an tity taken in t e r n a lly w ill show d ecid ed ly t o x ic e ffe c t s doe t o th e ty p es o f or gan ic a c id s, aldoh ydose, keton es and oth er oxid ation p rod u cts. Best regard s. Very t r u ly y ou rs. TSf.p Tbcnas H id gley, Jr . (Any r e p lie s ad d r ess t o W orthington O h io.) te S 00198