Document npajnpBQqBQvavEppnok19Xq1

( r ( C O P Y, , _____ Dece Liber DO, 1922. h r . P . S . DuPont, Chairman, B oard, B. I . DuPont de Honours and Company, .. iln u n g to n , D elaw are. Dear S ir: a r e p r e s e n ta tiv e of t h i s S e rv ic e wno was d e ta i le d to a tte n d a r e c e n t m eetin g o f th e American Chemical S o c ie ty in Kew Yora, has rep o rte d to the Bureau upon tne proposed use o f lead t e t r a etn y l in connection w ith fu e ls fo r gasoline engines, which s u b je c t was d iscu ssed a t th e m eetin g , and i t appeared t h a t tne DuPont de Kenours Coi.pany was in te r e s te d in tne developm ent and commercial in tro d u c tio n of th is substance. Inasmuch as i t i s u n d ersto o d th a t when e:upioyea in gas o lin e engines, th is sucs-ance w ill add a fin e ly divided and nond i f f u s i b l e form of lead to th e e x h a u s t g a se s , and fu rth e rm o re , s in c e cead poisoning in human b ein g s is of the cum ulative type r e s u ltin g fre q u e n tly from tne d a ily in tak e of minute q u a n titie s , i t seems p e rtin e n t to in q u ire w hether th e re mi gat not be a decided h ealth hazard associated w ith the extensive use of lead te tr a ethyl in engines. B eliev in g th a t th is phase of the q u estio n must nave re ceived a tte n tio n from th o se in te re s te d in tne p r o je c t, I an w ritin g to me r e vh.etuer your company has c o lle c te d any ex p erim en tal or o th e r d a ta b earin g upon the danger of lead p o iso n in g from th is s :u rc e . tru ly yours, -- i i c. Burgeon g en eral. imJjj