Document 5L5V25n9JOREexN851jr0nb84

1 REPRODUCED AT THE NATIONAL ARCHIVES c COPY -i:!,." :'V `\ ' . n ; , . ;/ GENERAL MOTORS RESEiRCH CORPORATION, DAYTON, OHIO. 'i' ;v-- November 18, 1922. D r. Norman R o b e r ts , Q uarantine S ta tio n , S ta to n I s la n d , N. Y. .. My d e a r D o cto r R o b e r ts :- I h a v e yo u rs o f November 1 3 th , w ith e n c lo s u re . I th in k you have g o tte n th e s itu a tio n rem arkably w e ll, and I have no comments o r c o r r e c tio n s to make. However, sin c e ta lk in g w ith you, we have been m aking some ro u g h c a l c u l a t i o n s , and f in d t h a t in the v e h ic u la r tu n n el w ith th e v e n tila tio n as proposed by F ie ld n e r, which is considered a b so lu te ly e s s e n tia l to avoid the dangers of carbon m onoxide, a n a n w i l l ta k e in to h is lu n g s a p p ro x im a te ly 1Jz n ilo g ran o f lead in the four hours th a t F ieldner c a lc u la te s as a maximum le n g th o f tim e h e should spend in t h e tu n n e l. How much o f tu. th is 1 /2 n ilo g ra n w ill be absorbed is , of co u rse, an im possible q u e s tio n to answer a t the p r e s e n t tim e , b u t i t d o e s n o t seem l i k e a v e ry la r g e amount a t the m o st. People m ust b e g e t t i n g t h i s much le a d r e g u la r ly a lre a d y in a g re a t many o th e r l i n e s o f work. I s in c e re ly w ish th a t you might be d e ta ile d on th is prob lem , a s I an s u re t h a t we could work to g e th e r w ith m u tu al s a t i s f a c tio n . Always w ith th e k in d e s t p e rs o n a l r e g a r d s , I am Ver;' tr u ly yours, (SIGNED) EQLAS MIDGLEY, J R ., C hief Engineer, Fuel Section. TU-J r . - D KJDB