Watt Attachment 3-2 MOMS 219708 Ootobr 11, 1937 r--^ ' 'Experimental -ork In anlaals shows that prolonged exposure to Aroolor vapors e I toIt#4 st high teaperatures or by repeated oral Ingestion will lead to systealo toxlo effeota* Repeated bodily oontaot with the liquid rJ Aroclore uy lead to an none--fora skin eruption* Suitable draft ventilation to oontrol the vapors evolved at elevated teaperatures* as well as proteotlon by suitable garaenta " froa extensive bodily oontaot with the llq- uld Aroolors, should prevent any untoward ^effeot*" Sn talking with Dr* Kelly before these three paragraphs were written* we agreed that they eight as well be phrased so that they ootild be used not only in the Aroolor booklet, but quoted In oorreepondenoe as that nay be nec essary* L.A.

Josoph Bigoa Tetraethyl Lead J.

Possibilities of hazard from this use of leaded gasoline would seem to be the following, in lessening order of importance: 1.

Kehoe: Attached is correspondence received from our Southern Region regarding the maximum allowable limit of the use of tetraethyl lead in gasoline.

which is irrelevant and immaterial to these proceedings and is not reasonably calculated to lead to the discovery of admissible evidence.

Hammond of the Humble Oil and Refining Company, we are attempting to develop semi-quantitative coproporphyrin standards which would be useful in the medical departments of affiliated companies, in order to develop some additional information on a urinary coproporphyrin excretion in employees ex posed to lead and who are now receiving periodic urinary lead examinations.

Possibilities of hazard from this use of leaded gasoline would seem to be the following, in lessening order of importance: 1.

Xehoe: Thanks very much for jacking us up on the matter of publicity on the "Occupational Lead Exposure" pamphlet.

Kehoe Kettering LaboratoryUniversity of Cincinnati College of Medicine Cincinnati, Ohio Dear Bob: I was intrigued by your discussion with me last Friday on the subject of lead intake on various sources.

Our studies on the possible usefulness of this compound in lead intoxication are not quite com plete}, but I will get in touch with you when -they are.

C l a i r , Cincinnati, Ohio Lead Analyses UHI NTS Analysis Humber Volume Specific Gravity iig* Pb/Liter - 52A-81 - 150 ral - 1.008 - 0 .0B SLOOP Analysis Dumber Drams % .

Kehoe pointed out, these are for gasoline vapors only and not for tetraethyl lead.

Paragraph J tailread weighta at Blank Eagle, and saaplea taken by as as tarn Is leaded et Blank Eagle, will govern la anklag setUenmi.

There were also three mixed-pigment paints as follows: (a) a lead-zinc paint LZ,, (the sub script represents the percentage of the pigment symbolized in the total pig ment by volume), (a) an antimonyzinc paint, AZ,p and (c) a titaniumzinc paint, TZ,6.

Euston White lead ................................