Results vill he recorded as alcrograas of lead per cubic meter of air.

MB: GP Enclosures LEAD INDUSTRIES ASSOCIATION 60 East 42nd Street New York 17, N.

If, on the other hand, work with leaded gasoline along the lines first indicated have been resumed, you may have some interest in my comments.

Smelting and Refining into the National Lead family.

INDUSTRIAL LEAD POISONING Due to widespread lack o f knowledge in the medical profession o f the causes and diagnosis o f lead poison in g, as w ell as the fa c t that i t is not a reportable disease and the facto r o f deliberate ^covering up, u no useful estimate o f i t s prevalence in the adult population is p o ssib le .

A number of the very high findings have been in the blood of children, for* here some of the largest dosa;ios of lead are taken within relatively short periods. had high results in association with occupational exposure to lead also, and it is not too remarkable to find concentrati ons of the order of 0.40, 0.50 and 0.60 mg. per 100 grams.

At the same time this is done, arrangements can be made to have lead analyses made in connection with your work.

Be this as it may, ray opinion, in view of the high quality of the work and the importance of establishing priority for its accom plishment, is that this work should be published as a factual description of the fate of the lead which is in the leaded fuel employed by automobiles.

However, It is apparent that the clinical course was fairly characteristic of a mild Intoxication from organic lead compounds.

Baldwin of 29 March is no consistent with organic -lead exposure for reasons given fully in D|r , :'oboofs letter to you of 10 October 19h5> ' For the reasons- given in this letter of Dr.

. , n contamination of the atmosphere with lead from the exhaust systems of autoiaoMles, and It is certain that these will have to he answered eventually on the basis of our available data.

n appreciable effect for short exposure The high concentration of carbon monoxide -limits* the exposure to undiluted exhaust gases so much that there is no possibility of the development of lead poisoning or appreciable lead absorption as a result of exposure to undiluted exhaust gases* If the exhaust gas is sufficiently diluted to avoid carbon monoxide intoxication the lead absorption is then negligible* Thus only other materials in exhaust gas as a result of the combustion of Ethyl Gasoline are small amounts (little more than traces!

F, Williams - (2) - December 1, 1950 of getting rid of the absorbed lead in a more expeditions manner, and with safety.

Other fields covered are concerned with the therapy of chronic lead poisoning and the clinical and medicolegal aspects of chronic lead poisoning and of acute poisoning with tetraethylene lead.

Minutes of Regular meeting of the Board or directors of National Lead Company held at No.