Document qd2Ldo6GpjyEwjpY5VgMN2n3k

D ecem b er 15, 1958 M r , M an fred Bow ditch D ir ecto r of H ealth an d Safety Lead In d u stries A sso ciatio n 60 E a st 42nd Str eet New York 17, New York D ear M an fred : '* I am som ew h at fa m ilia r w ith th e M .S.A . Le a d - I n - A ir D e t e ct o r Kit, bu t not to su ch an exten t a s to give you a sa t isfa c t o r y accou n t of it s u se fu ln e ss. I sh all be ab le to do so so m e tim e la t e r , fo r we m ak e poin t of ch eckin g all o f t h e se b it s of a p p a r a t u s so o n a ft e r th ey a p p e a r , fo r o b v iou s r e a so n s. It is m y im p r e ssio n , h ow ever, fo r su ch u se a s su ch an im p r e ssio n m ay be to you , th at t h is equ ipm en t, lik e th at d e v ise d b y Eth yl C o r p o r at io n fo r it s own u se in fie ld w ork, h as a d istin ctly lim ited ap p lication to sp e cific u sage for t e st s w h ich m u st be m ad e q u ick ly an d w ith ap p r o x im at e a c c u r a c y in con n ection w ith p r o c e sse s an d o p e r at io n s th at a r e c a r r ie d out in t er m itten tly an d in a variety of p laces. A s you m ay be aw ar e, th e in str u m en td ev ised by Eth yl Corp oration h ad som e u n fortu n ate p u b licity an d so m e p eop le u se d it fo r p u r p o se s fo r w hich it w as n ot in ten d ed , w ith w h olly u n sa t isfa c t o r y r e su lt s. It b e cam e n e c e ssa r y fo r m e to put r igid r e st r ictio n s upon its u se an d upon w hat w as said about it by Eth yl C o r p o r atio n p e r so n n e l. Th is w as u n fortu n ate too, but I h ad no ch oice in th e m a t t e r , I su sp e c t th at th e sam e th in g sh ou ld p r o b ab ly b e don e (but w ill n ot b e , fo r ob viou s r e a so n s) w ith the M .S.A . in st r u m e n t . T h is Com pan y (M. S. A . ) can t ak e th e p o sit io n , q u ite p r o p e r ly , th at it is up to th e p eo p le who p u r ch ase it to know w h at t h ey w an t it fo r an d how to u se it . I would h ave lik ed to tak e the sam e p osition , but I could n ot u n der the p ecu liar cir cu m stan ces th at related to th e Eth yl ap p aratu s. T h is, in sh o r t, is the c o r r e c t con clu sion , in all p r ob ab ility - th at th e M .S.A . in st r u m en t is qu ite sa t isfa c t o r y , in th e h an ds of a p r o p e r ly in form ed p e r so n , to u se in. c o lle c t in g c e r t a i n sp e c i fic it e m s o f in fo r m a t io n . It i s h a r d ly t o b e r e gar d e d a s an in stru m en t fo r u se in r e se a r c h . N or is it th e ch oice, in th ose situ atio n s in w h ich stan d ar d m eth od s of sam p lin g an d a n a ly sis can r e aso n ab ly be em ployed. I am su r e th at you can get r e liab le in form ation abou t th is equipm en t th rou gh Bill Yan t, who can put you in tou ch w ith th e m an in t h e ir o r gan izat io n who w orked it out to m eet a situ ation th at w as p r e se n t e d to th em a s r eq u ir in g su ch equ ip- RE" 0014373 M r . M an fred Bow ditch . D ir e c t o r of H ealth an d Safe t y - (2) - D e ce m b e r 15, 1958 m en t. I h ave no doubt th at it w as som e situ ation very sim ilar to th at faced by Eth yl Corporation . Sin cerely y ou rs, RAK ef Robert A. Keh oe, M .D . ^ ^ 0014974