Dear Sirs: I am enclosing herewith a copy of my findings on His history indicates that this patient was one of a group of men who on Tuesday, January 30* 1940, helped clean out a gasoline tank which had previously been filled with gasoline containing tetraethyl lead.

Dear Sirs: I am enclosing herewith a copy of my findings on His history indicates that this patient was one of a group of men who on Tuesday, January 30* 1940, helped clean out a gasoline tank which had previously been filled with gasoline containing tetraethyl lead.

is kept in an orderly state* m 00 ;34b3 . - -. . ** 2 " I am sending you herewith reprints covering a series of published articles and also a copy of the latest version of the regulations* A very considerable amount of investigation has been carried out in this field arid the results of these in* vestigations make quite clear* I believe* the source of danger* There , has been a tendency to confuse the actual dangers associated with the handling of Fluid with the purely hypothetical dangers arising from the handling of gasoline containing small quantities of tetraethyl lead* Certain articles* which I am sending you* deal with the problem of leaded gasoline.

Leadburner Methyl Chloride Mercury Noise Painter Radiation (Ionizing) Shale Oil (Inactive Grc Sandblaster (Also other Tetraethyl Lead Tinners Wax Operations (Inactive group) .'

Leadburner Methyl Chloride Mercury Noise Painter Radiation (Ionizing) Shale Oil (Inactive Grc Sandblaster (Also other Tetraethyl Lead Tinners Wax Operations (Inactive group) .'

The precautions advised are of the standard type, and it is only useful to remark that it is of importance that these instruc tions be carried out with minute care against the possibility of intoxication from tetraethyl lead.

We expect to obtain representative samples of material from the sides of the tanks and from the sludge at the bottom In order to assure ourselves in relation to the histories of use of these tanks an to what are the factors which give rise to decomposition of tetraethyl lead in the gasoline, and what quantities of lead are involved.

The precautions advised are of the standard type, and it is only useful to remark that it is of importance that these instruc tions be carried out with minute care against the possibility of intoxication from tetraethyl lead.

Chlorothene and Carbon Tetrachloride ......................... 38 Ethylene Dibromide ......................................................... 39 Handling Lead .................................................................. 36 Handling Lime .................................................................... 38 Working on Acid and Caustic Lines and Equipment Containing Corrosive Material .................................... 39 Working on Lead-Sodium Alloy Lines and Equipment . , 45 Working Near Molten Lead ............................................. 45 Working on TEL Fluid Lines and Equipment.................... 43 Scaffolds ................................................................................ 26 Tools ..................................................................................... 33 Warning Signs and Barricades........................................... 23 Warning Signs and Danger Tags........................................ 23 5.

HFJN 12471c Porphyrins in tetraethyl lead poisoning.

Occurrence of DDT in human fat and milk, *245 Law: See Jurisprudence, Medical; Workman's Com pensation and Insurance Lead absorption: influence on ratio of large to small lymphoid cells, 328 encephalopathy: in cooperage, 415 endarteritis obliterans: in worker exposed to, 418 medical view of problem, 531 poisoning, 535 poisoning and absorption: effects of sodium citrate in, 525 and 536 poisoning: among workers, 533 poisoning: BAL and: action of BAL on copro porphyrin and lead in urine, 108 poisoning: BAL and: effect on blood changes, 109 poisoning : disturbances of hemoglobin synthesis in, 206 poisoning: factors influencing mechanism of. 111 poisoning: failure to affect heart, 412 poisoning: treatment with sodium citrate [Hardy & others], *267 poisoning: in workers filing automobiles, 109 saturnism: in lead miners in Marrakech, region, survey, 107 saturnism: recent studies in Italy, 527 tetraethyl poisoning: praxis of industrial labora tory for prevention of, 537 toxicity: some observations and speculations, 326 Lee, G.

Webb came to me for advice for I had done the medical investigation that revealed the nature of the new chemical compound - tetraethyl-lead which had been synthesized in order to have a compound of lead (organic lead) which was soluble in gasoline.

Webb* X vish to report to you the results of my observations made at the tetraethyl lead manufacturing plants in both Deepvater and Baton Bouge, since my report to the Board of Directors of the Ethyl Corporation, on Monday, January 10.

Kehoe explained that the main intoxication occurs because of the probability of large amounts of Tetraethyl Lead in the sludge and that the vapors in which the men worked became saturated after the sludge was moved about in the tank.

In the course of my last trip I looked into acme of these matters in a very discreet manner, and I think there can be no doubt that we must make some detailed observations as to the lead in the atmosphere, and the evidences of lead absorption on the part of some 'well- selected groups of exposed persons* It seems likely that some of your people are aware of this situation, as it may effect the use of tetraethyl lead, but I am convinced that we need to handle the situation with con siderable care.