1 11 *0 C CO I B II ce v. ss 5C5-fOcC s *o.2 **->** *g :1 cKo 0.0 !

REPRODUCED AT THE NATIONAL ARCHIVES / "'A ''Vis'' WSfSyfSiTBvVR' ,.& . .:?'

YEARBOOK 19 5 5 Volume I of Th ree Volumes METALS AND MINERALS (EXCEPT FUELS) Prepared by the staff of the B U R E A U O F M IN E S D IV ISIO N O F M IN E R A L S C harles W .

4 SJ Esso Research and Engineering Company (FORMERLY STANDARD OIL DEVELOPMENT COMPANY) P .

June 12, 194?

t l i n s o f an in MHKSflHSRS aSk ff gativn Into the possibiallnjurictta effect.

From John R.

~ f !

REPRODUCED a t THE NATIONAL ARCHIVES o m et of IN D U S T R IA L H YO IBN B AND SANITATION .Hri.OKA!

y<Ky-: ir ''H'.fy.'

reproduced at the national archives MEDICAL 01 UNITED STATES PUBLIO HEALTH SEF P v<- ' ' Pive dai ,,,w.

h filh- .............

MR MOP.GENTHAU'3 O F ^ P ^ ^ T w ,T7SlVEf ' Mr Gibbon Miss Rocho Mr.

y S.

REPRODUCED AT THE NATIONAL ARCHIVES d L t'r T ^ TEXT OF FULL REPORT OF -igati an of Health Tetra-ethyl Lead C REPRODUCED AT THE NATIONAL ARCHIVES ': H-687 /-IV :t; ..V- HI ' i '; '..i / jffi" *- :.tr r'# REGULATIONS PROPOSED .