Document b5GdyZrLNLGB5e60zM1Oy3BYy

October 7* 1340 Dr* George Calingeart Ethyl Gasoline Corporation 7500 Yfcst Sight If11* Road Detroit, Kiehigan . i?y dear Cal Concoming the matter of the proposed us of loaded gasoline in cooking equipment by the United States A m y * you -ill recall that Dr. Kehoe felt that we should look into the matter and probably obtain one of the A m y stoves for the purpose of determining whether or not a lead hasard existed# Accordingly, on Friday of last week I attended a conference in 7iashington with Colonel Hoes of the Procurement Section of the United States Quartermaster Corps who i fully familiar with this whole subject* - Colonel fiosa info m o d me that the only stoves in whioh it is proposed to use loaded gasoline are those developed by the Army for this specific purpose* Those stoves are of a variety of types but they all use a burner designed to removed the lead from loaded -.saline A photograph of this burner is enclosed herewith and later Colonel Eosa told me that he would send ms a copy of their bulletin describing in detail the use of the equipment and giving drawings showing the details of design* Substantially, the prin ciple is as follow the gasoline vapors pass through an iron tube which is heated by the burner and is supposed to decorapo*e the tetra ethyl lead. The vapors then pass through an asbestos filter which is easily removable and is shown in the center of the burner in the dictograph. This burner was tested by the Army Medical Corps at the Tfaltor Reed Hospital in January of this year* A copy of their report is enclosed. There are obvious questions raised by the re port* One of these is that only about 0.73 eo. of tetraethyl lead was found in the Ethyl gasoline* I do not know of any Ethyl gasoline carrying as little lead as this* The other is the apparent assumpt ion that all of the combustion products wore analysed* A rough calculation on my part would indicate that about ZbO cubic feet of air is necessary to burn one pound of gasoline and, therefore* the estimates given in the report of the percentage of lead removed are in error. However, if the analyses of the combustion products are correct, the conclusion that no load hasard exists nay also bo correct* . bt 0008553 Dr* Goorrj Galin gearfc October ? , 1040 Colonel Hoas informed we that 'ns m s somewhat doubt ful of the validity of the conclusion reached at Camp Holabird conaoming the use of Thrift-0~Ln in the gasoline as a weans of prolonging the life of she filter but, in any ease, 'bother Thrift-0-Len is used or not, leaded gasoline will only be used in this particular type of burner* I will appreciate it if you will review this subject carefully and then send the photograph, filter, and a copy of the Medical Heport to Dr. Kaehle together with any cossaeaits you say wish to make. I will appreciate a copy of Such otsaemts* If Dr. Maohle feels that we should pursue the subject further, I will b glad to attempt to make the necessary arrangements * If, however, he fools satisfied with the situation, 2 suggest that we drop the whole matter, although we sight attempt to determine the composition of Thrift-O-Len Very truly yours. Graham TJdgar S3 Ends . KE 0008554