I mistakenly assumed from a hurried glance at the ac companying letter from the Hew York office that you had already been given UK inswer Th to let you know that the records of the Ethyl1 Corporation indicate that this grade of Sinclair gasoline in the area near Syracuse during the past year con tained quantities of tetraethyl lead that varied between .92 and 2.0 c.c. per gallon.

i l In the matter of the studying of the effects of Vitamin nC " in the case of workers in the tetraethyl lead area, some con siderable delay in the preparation of this article for publi cation occurred.

Corporation Chrysler Building New York City New York Dear Grahams I have a letter from Sevan together with a report from Morganthaler, indicating that the Gexman health authorities have raised certain questions as to the- hazards which might be expected to arise from the use of leaded, gasoline in stationery motors, particularly in mines and in other enclosed places* ^hey have also questioned the degree of accumu lation of tetraethyl lead in motor lubricating oil, and have specifically requested Morgenthaler to obtain information on these points as the result of experience and observations in the United States and elsewhere.

If by finding some lead in urine 3 or 4 years after a man came in contact with Tetraethyl gasoline in small quantities of 2-1/4 gallons per month, used in starting small engine and cleaning some machinery, a doctor can say that lead poisoning was contracted by absorption through the skin, it would seem that your profession would be assuming physical facts based upon the wildest imagination.

As you know, -nOv's report indicates that sterniing cannot As considered aa a of recnvrn: tetraethyl lead or its decanusositloa wyoriucts, H'h&rerHJNj it -^oulv. : -, ' r t-wt workmen denning out the sludge j?

Kehoe and our management yesterday, the following policy was agreed upon in connection with distribution of the medical report from the Kettering Laboratory entitled "An Investigation of the Potential Hazards of Exposure to Lead Associated With the Handling and Use of Gasoline Containing An Antiknock Fluid in Which Tetramethyl Lead is Substituted for Tetraethyl Lead:" 1.

Kehoe and our management yesterday, the following policy was agreed upon in connection with distribution of the medical report from the Kettering laboratory entitled "An Investigation of the Potential Hazards of Exposure to Lead Associated With the Handling and Use of Gasoline Containing An Antiknock Fluid in Which Tetramethyl Lead is Substituted for Tetraethyl Lead:" 1.

If the oans had been used over and over for gasoline without cleaning, and.fi there were large quantities of rust in which small quantities of decomposition products of tetraethyl lead were deposited, the situation would be altered somewhat.

On the other hand, In order to provide you with the basis on which my opinion was arrived at, .1 am sending ypu under separate cover a reprint which details"certain studies w have made ori individuals who have been exposed over the longest period of time in the handling of gasoline containing tetraethyl lead, I feel both from the results of these analyses as well as from the consideration of the article which I am sending you, that you will have to consider some other cause for your patient*s complaints.

Kehoe: .Is yen probably know, the addition of tetraethyl-- lead is regul ated by law in Venezuela.

As more lead was found in the effluent air than could be explained by the presence of amounts of gasoline vapor which were found, it seems possible at least that there might have been an accumulation of tetraethyl lead in the hose wall as a consequence of repeated soaking in lead containing liquids and subsequent drying.

These men are variously engaged in the manufacture of tetraethyl lead and of most of the intermediate products that enter Into the manufacture of tetraethyl lead and anti-knock fluids.

.; Prom the description of the man's illness, I suspected that he had had 3ome exposure to tetraethyl lead, and before giving any opinion In the case, I asked that tissues be sent me for analysis.

I. at Ravenna* if there is another in existence at this time) has been badly operated (and perhaps badly designed) so that numerous cases of tetraethyl lead poi soning have occurred among the employees* the medical and hygienic situation is of considerable significance here.

Tre should like to call to your attention that any fuel, whether gasoline or iso-octane, has a com mercial limitation of A*6 cubic centimeters of tetraethyl lead par gallon when such fuel is to be used in aviation engines.