I am enclosing copies herew'3 our correspondence on the subject and you will see thatJrh^ve tr\ec sto establish the fact that urine analysis is not necessq suspected that lead poisoning actually exists.

Very few cases of lead poisoning have beer stualeu with such care as io enable one to determine such effects as you steal. of in these qucstioi b. fe.i.i poison,hip. and lead intoxication arc simply two terms usee to denote the .

Muskie: Does m edical opinion agree th at there are no harm ful effects and results from lead ingestion below the level of lead poisoning?

I also send you a copy of tire paper which repre sents some of the eulllngs of unusual cases of lead poisoning in medical literature, as id by our fox-mer librarian.

You will find very little adequate information on the pathology of tetraethyl lead poisoning, not because the matter has not been studied, but because very little of consequence has been found.

These have great influence in preventing lead poisoning, as much lead can enter the system through the finger nails^ The general principles on which we have worked is that more lead enters the system by being converted into soluble lead salt by the perspiration than that which enters through the breathing apparatus, sc that if we keep the skin and hands clean, there is little danger

all of the studies in lead poisoning is to appear shortly.

^nen me'nace`, and' `you, -sel'"li`ngf a well known lead poison that cannot help but fill the- air wit!

I would say of this entire matter, that the problem of the absorption of lead as an hazard of industry, is that of controlling the exposure of all workmen to such an extent that no case of lead poisoning occurs among either men or women.

A study group of 20 children with lead encephalopathy who were hospitalized at Cook Countv Hospital Illinois in 1966 demonstrated only one with an elevated urinary ALA level* Examination of a blood film tor the presence of basophilic stippling of ervthrocvtes is merely a supplementary test that can be Used in the "workup" of lead poisoning cases.

This ect shall ba known as "the lead-based paint poisoning pr*2 vention act*'. 3 Sac. 2.

Lead Poisoning - The Association has supported medical, research on lead poisoning at Harvard University ever since its inception* Zt has devoted and is giving a large amount of time and attention to lead poisoning problems arising in the use of a--rrma lead products, which cause the industry a large amount of trouble and unfavorable publicity* Through its efforts a better appreciation of the medical poaltibh of lead is being witnessed in the United 6tates, but progress is necessarily alow* 4 L* - The Association publishes six tines a year a igssine, "Lead* , having a circulation of 3f000 going to people in a position to specify various lead products* A 0000-NLI-000020443 N 2611 greet many unsolicited comalinent*' ry letters from readers sake us believe that this project is well worth its cost, 5.

Lead Poisoning - The Association has supported medical, research on lead poisoning at Harvard University ever since its inception* Zt has devoted and is giving a large amount of time and attention to lead poisoning problems arising in the use of a--rrma lead products, which cause the industry a large amount of trouble and unfavorable publicity* Through its efforts a better appreciation of the medical poaltibh of lead is being witnessed in the United 6tates, but progress is necessarily alow* 4 L* - The Association publishes six tines a year a igssine, "Lead* , having a circulation of 3f000 going to people in a position to specify various lead products* A greet many unsolicited comalinent*' ry letters from readers sake us believe that this project is well worth its cost, 5.

Dear Or*' Stephensont ' Your letter addressed to the Bthyl Gasoline Corporation has been referred to me for reply"* The Inhalation of load-containing gasolines has not been associated with the occurrence of lead poisoning among gasoline handlers * In fact there, hare been no oases of poisoning reported anywhere 'as a consequence of. exposure to'leaded.-.gasoline* either'by'-inhalation or as a result of- skin- contact* X and. my associates in this laboratory have studied this problem over a period of years* aitd l'am sending you a reprint of an article which recently..appeared in the Journal of .

Meanwhile, however, a considerable proportion of the lead is lost from the body by various routes, and it is not easy, therefore, to produce the picture of chronic lead poisoning.