Document jygGLB376aX9x75Mba5439ZOO

FILE NAME: WR Grace (WRG) DATE: 1964 DOC#: WRG284 DOCUMENT DESCRIPTION: 1964 Letter to Mr Kelley from Dr Nelson regarding x-ray survey of Zonolite employees u m > :.vi >!oAna 0 / d ' j u a t s r / SYOoc;: r.v n e l o o n , m. d. h i i & x r o<o*rt wic-'jr, hi-yaha ; o ji Joseph K ollo/ President Zcnolito Division V iR . Graca & Company 135 S o . L a S a llo S ir o a t Chicago, 111, / Dear Mr.' K e lle y , ` In 1959 an x-vz\y survey o f a l l Z o n o llta employees a t Libby t/a3 c a rrie d out under V n. L i t t l e , M .D ., ( R a d io lo g is t) , o f K a l is p e l l, Montana, and Janea C a im a , M .D ., o f I lb b y , in u n u su ally high in c id e n c e , ( approxiriuvtoly l / `^ ) , o f b a s ila r flb r o 3 ia Viaa found in t h is s e r ie s . . Thia 3urvoy was repeated th ia y o ar, a fte r a mooting o f tho lo c a l doctors and Libby Z c n o lito ad m in istra tio n . At th lo m ooting, the consensus o f l o c a l m edical opinion was th a t an im portant incv'oaaed In cidence o f chronio r e s p ir a to r y d isease e x iste d in. Z o n o lite employees who had prolongad exposure to d u st, ' As a r o s u lt o f tv i3 , I suggested and o ffe re d to ca rry out studies o f lung f m e t Ion by respiratory cap acity measuremonta, to be compared w ith lung pathology a3 measured by tho x -ra y survey. The x -r a y summary haa boon completed and film s road by Dr. L i t t l e , in clu d in g comparisons with the film s o f 1959. T o ta l and timed rp s p ira to ry cap 'c i t y stu d io s have been completed under my supervision ad % standards computed cn the employees. I have begun a n a ly s is o f r e s u lts and correlation with x-ra y fin d in g s. In ry opinion tho an a ly sis of dato so fa r obtained should be c a rrie d out to a s ta g o -o f reasonable c l i n i c a l com plete ness bocaU3a p re lim in a ry a n a ly s is ehowa d is t in c t and im portant change in re s p ir a to r y fu n ctio n and p ath olo gy. V/UCijnCV/ S t U C l M , M. o. I H C U T C ` (3A4 t u y , M n r'X 'u s >M? 0 / C iJ-i IS iY r-i'/O'iC So far, I have conducted tho above function studies in spara tir o , without charge to the company. I Intend to continue tho analysis and w ill be happy to send you the data which I have obtained and results of my analysis of tho sare, You perhaps have men in tho renoarch- division qualified and interested In completing tho 3tudy. I f not hewovor, I an qualified by training and past research experience to cawry out an analysis of tho data wo have fro;a a standpoint o f c lin ic a l importance and v;ith reasonable compie teneso and would bo interested in doing i t , I would need however to leave practica end spend fron two to four weeks in a medical cantor such as Chicago with library, consultation f a c i l i t i e s , etc. For this I would need reimbursement for expenses including incorno lo s3 for tho timo involved, I could probably taka, tho timo, this fa ll., " Please lo t ma know Mother you think Zcnolita Division of Craca Company would be interested in pursuing this further, Thera aro many facets to this inhalation problem but tills la tte r is long enough already. Sorry I did not got to goo you on your la s t v i s i t hero. Ky contacts with you and tho 011101' members of tho company have always been moat piaasur~ nblo Sincerely yours, v:i/ph Woodrow Kelson, M.D.