Aub and associates at Harvard College on load poisoning - a matter of deep interest to us and to tetter understanding of which Dr.

The usefulness of such determinations is that they show the extent of the lead exposure and absorption of an individual* One now knows feat if fee lead excretion of a groupf of men is above a certain level, cases of lead poisoning are likely to occur* The higher fee lead level, the greater the frequency of Occurrence of cases* Quantitative 2 Dr.

The lead concentrations are sufficient to cause biochemical changes, but not sufficient to cause lead poisoning symptoms, the report says.

Cases of lead poisoning which have resulted fatally in a few instances have occurred on the use of snuff heavily contaminated with lead chromate " which had been employed in order to give the snuff a commercially desirable color.

If work has been reported on the possibility of lead ab sorption or poisoning as a result of the handling of metallic lead, it will be appreciated if you can direct us to the publication.

I need not co.ll your attention to the errors that o.re made in the o.iagnosin:; of lead poisoning because of the unfnniliarity of many doctors no the true facts.

It is uncommon for men with this degree of exposure to have signs or symptoms of lead poisoning.

These arose out of the day's work of consultations and investigations involving industries that were under pressure in one way or another, or out of cases of lead poisoning that required investigation.

The lead concentrations are sufficient to cause biochemical changes, but not sufficient to cause lead poisoning symptoms, the report says.

However, the clinical picture described doos not coincide with the customary picture of lead poisoning* It is true that spasm of the blood vessels is an occasional reaction to the absorption of considerable quantities of lead.

Cases of lead poisoning which have resulted fatally in a few instances have occurred on the use of snuff heavily contaminated with lead chromate ' which had been employed in order to give the snuff a commercially desirable color.

These arose out of the day's work of consultations and investigations involving industries that were under pressure in one way or another, or out of cases of lead poisoning that required investigation.

His present condition is substantially as it was when I examined him last in 1934* He has the same pallor, somewhat more anemia than, when I saw him last, and the same circulatory embarrassment although there has apparently been some degree of symptomatic improvement, I have never been able to find any evidence of residual lead intoxication, and my initial judgment that his disability might well be due to lead Intoxication was based on his history of employment and illness rather than any specific evidences of lead poisoning.

In children recovering from acute lead poisoning and protected from exposure the parallel rise in blood lead concentration and hematocrit continues for about 3 months.

Industrial Lead Poisoning.