The reasons for tqy objection are as followsi (1) it will lead to oonfuslon, especially If the noise ever beoomesjw^d^^nsed, as there are many other ethyl gases besides^totraetigrl leedt (2) since the real ob ject of our Imrestigotion is to determine whether or not lead is deleterious in the combustion produote, it Beans to me that we would be wise in our investigations to refer to its ohemlo&l name "tetraethyl lead", or one of the other ones possible.

IVe have recently been studying the distribution of tetraethyl lead and some of the colloidal lead compounds, and at the same time have been studying the excretion where these various com pounds are used.

IVe have recently been studying the distribution of tetraethyl lead and some of the colloidal lead compounds, and at the same time have been studying the excretion where these various com pounds are used.

The reasons for tqy objection are as followsi (1) it will lead to oonfuslon, especially If the noise ever beoomesjw^d^^nsed, as there are many other ethyl gases besides^totraetigrl leedt (2) since the real ob ject of our Imrestigotion is to determine whether or not lead is deleterious in the combustion produote, it Beans to me that we would be wise in our investigations to refer to its ohemlo&l name "tetraethyl lead", or one of the other ones possible.

It seems quite clear, therefore, that there has been no danger to the handlers and users of gasoline from the introduction into it of small quantities of tetraethyl lead.

Unfortunately the precipitation did not manifest itself seriously until after it had been mixed with tetraethyl lead and stood for some length . of time.

-;V tieularly in the ease of Fluid which had baon held for considra ble periods of time* I am sure that the settling out of sludge, due to the decomposition of tetraethyl lead, would give rise to a lower percentage,of lead in the Fluid, at any rate it has been considered advisable to-analyse the Fluid* This ha* been don without consulting anybody connected with the Ethyl Gasoline Gorporation, and of course, has boon done for strictly business rea sons.

Gentlemen: The Surgeon General of the United States Public Health Service issued Public Health Bulletin, Number 165, in 1926, having to do with regulations for the distribution of gasoline treated with tetraethyl lead.

Gentlemen The Surgeon General of the United States Public Health Service issued Public Health Bulletin, Number I63, in 1926, having to do with regulations for the distribution of gasoline treated with tetraethyl lead.

We have been obtaining more and more precise and adequate information concerning the study of men engaged in the manufacture of tetraethyl lead, and there is no question that the hygienic status of these plants has been greatly improved over that existing in the period from 1926 to 1930.

;^,esentriI-,have;,found nothing suggestive of public hazard from "the handling and the use of Ethyl Gasoline, and it is perfectly safe to state that our re sults Indicate exactly the same things as have been shown by our previous results and by those of the Surgeon Generals committee* This will be no surprise to you, I am sure, but it will.probably be of some interest* ve are continulng with experiments along several lines which are yielding some interesting results# However, they have very little to do with the dangers of tetraethyl lead or Ethyl Gasoline, but are quite interesting with the gener al problem of lead poisoning* I hope to be able to re port soon on our experimental work on tribromanallne

We have been obtaining more and more precise and adequate information concerning the study of men engaged in the manufacture of tetraethyl lead, and there is no question that the hygienic status of these plants has been greatly improved over that existing in the period from 1926 to 1930.

Lead tetraethyl present per grants .0015 milligrams

Bohlnani I hare your letter of February 20th concerning the physiological effect of eshauat gas from gasoline containing tetraethyl lead.

-2- Spears & Riddle Company 3/21/27 You will recall that there were all sorts of dire predictions about sales resistence in connection with the putting of a notice on the pump that it con tained tetraethyl lead, but I do not believe anyone would say today that such notice has created any substantial resistence and if our picture of the future is correct as to the greaterimportanee to be attached -to Ethyl Gasoline, I think such notice and precautionary measures will have less significance from the standpoint of resistence to sales. .