It seems advisable, therefore, that I ooramnicafee with you and give you the benefit of our experience in connection with this work, 'Shis letter will also serve as a confirmation of your appointment of this position* As the t%dical Director of Ethyl Export Corporation, I have been responsible for the approval of the equipment which has been developed for the mixing operations# I have also been responsi ble for regulations which have been concerned with the operation' of mixing equipment and with all other means of dealing with Ethyl Fluid and leaded gasoline# I am also in charge of the medical supervision of all mixing plants# In an entirely separate, capacity, I am director of a laboratory in the University of Cino^nnQti which is engaged in the study of occupational diseases and in this capacity I have directed ranch of the experi mental work which has had to do with th problem of handling Ethyl Fluid and the public health problem of the distribution of leaded gasoline# Accordingly I am sending you information in the form of reprints of a series of published articles which de*l both with the clinical phase of this matter and the experimental * I send you also a memorandum which was prepared for th benefit of consultants of Ethyl Export Corporation, in which th general policies of the Medical Department are set forth# I trust you will find those of interest end value 2 - ^ Briefly, with reference to the dativere of this occuration, it should be said that if the Mixing equipment is constructed properly and operated properly, there will be no danger whatever of lead poison* ing among the workmen* The mixing equipment te simple In design and easy to operate* The regulations are set up for the purpose of avoiding all exposure to lead compounds* Indeed the actual safety of these operations is so great that there has been no case of lead poisoning in connection with this work, nor has there been evidence of measurcable load absorption among the workmen* On might assume from this that there is no great need of medical supervision* This, however.

Sales in 1938 were - Zinc Oxide, $14,897.25; white Lead, $18,505.25; sales in 1939 were - Zinc Oxide, $36,381.00; white Lead, $23,241.00.

Sales in 1938 were - Zinc Oxide, $14,897.25; white Lead, $18,505.25; sales in 1939 were - Zinc Oxide, $36,381.00; white Lead, $23,241.00.

(Ifheavy, pastewhite-lead Is used, !

They do not particularly wish to work against each other by attempting to demonstrate that their gasoline is better than competitive leaded gasoline and, therefore, about all that is left for them to demonstrate is the effective ness of tetraethyl lead as an anti-knock thus working for all customers against the Shell who are opposing the use of lead in any form.

LEAD PIPE SIZES Lead Industries Association Standard Size Inside Diameter Classification East west 3/8 in.

They do not particularly wish to work against each other by attempting to demonstrate that their gasoline is better than competitive leaded gasoline and, therefore, about all that is left for them to demonstrate is the effective ness of tetraethyl lead as an anti-knock thus working for all customers against the Shell who are opposing the use of lead in any form# For this reason, I believe that such people as the Vacuum Oil Company would remonstrate against the inability to use any tetraethyl lead although we will be glad to issue regulations to the effect that no lead shall be so used if you feel that it is necessary* The Vacuum Oil Company has bought two demonstrating engines (l-Australiaj lNew Zealand) whioh may give some idea of the amount of this sort of work that goes on.

Lead is one of the known agents which can produce severe arteriosclerosis and since the cause of death in this case is the result of coronary sclerosis and since lead was found in the tissues in considerable amounts, lead poisoning would be the primary cause of death.

,-f- .-..j' - ' MHE3EAS, the lead IndnstrlegTisBociatidn was invited, rmder date cl* iv?

2nd Annual fleeting lead Industries Association* Apr, 13-Ht, 1950, Chicago, HI,, at the Panel Jiscussion of lead rroduoora.

Oslo Leaded Zinc is the only other pigment we know of which has an oil holding quality closely similar to that of Hhite Lead.

M y work was blending gaspline and treating it with Sthyl lead.

2nd Annual fleeting lead Industries Association* Apr, 13-Ht, 1950, Chicago, HI,, at the Panel Jiscussion of lead rroduoora.

To this is added bichromate of soda equivalent to 85.5# of the lead, followed with sodium sulphate equivalent to 14# of the lead.

My work was blending gasoline and treating it with Ethyl lead.