Robert A Kehoe University of Cincinnati College of Medicine Cincinnati Ohio* My dear Kehoe* I am sorry to have been delayed in acknowledging your second lead paper but I took a holiday over the 4th of July -which has delayed me somewhat* Before I attempt to make any detailed comment on your conclusions* I would like to have you clarify one or two points in my mind as some of the data and some of the conclusions seem to me inconsistent with the results in the papers on Normal Lead and the first paper on Tetraethyl Lead* As I understand it, you interpret in general lead in the faces as a measure of exposure and lead in the urine as a measure of absorption* Presumably then, when exposure is changed there should be a change in the fecal lead perhaps followed by a change in the urinary lead* I am a little handicapped in your paper by the ab* senoe of the figures but there is apparently no evidence in the case of the two garage workers, A M* and W* B, of a change in either fecal or urinary lead when removed from their occupation Furthermore, the urinary lead seems to be well within the limits of normal lead given in your previous papers with the exception of -fee four medical students who were in this investigation.

Presumably then* when exposure is changed there should be a change in the fecal lead perhaps followed by a change in the urinary lead.

Responsible for this vastly im proved flat paint is Dutch' Boy; Lead Mixing Oil... a companion;1 product to Dutch BoyWhite-Lead., When added to Dutch , Boy;; White-Lead, it proditceis a finish!

I base this conclusion on. careful study of a large number of cases of lead absorption in the lead in dustries , as well as lead absorption in the normal unindus trialized population. .

"We had (he wall 6oisbes obtaiaed with Lead Min'oi Oil aad white-lead non sari*factory.

changes indicative of increased lead absorption.

ANACONDA LEAD PRODUCTS COMPANY EAST CHICAGO.

The Medical Department has used 24 hour lead concentration in each specimen specimens as a measure of lead exposure of persons doing spray painting and working with lead or lead compounds.

National Lead Company is also a de pendable source of supply for lead oxides ...red-lead, litharge and orange mineral.

The hazard due to the presence of lead in the general environment, in the air-, particularly?

Fatal lead poisoning occurs not only in the lead-using industries but also in the general population, though only to a negligible degree in the latter case.

(i) Lead in the urine.

U) Lead in the urine.

Many other doctors wrote that they had seen cases of lead poisoning in children and mentioned cribs, toys, woodwork, furniture, lead nipple shields and breast ointments with a lead base as the sources.

Many other doctors wrote that they had seen cases of lead poisoning in children and mentioned cribs, toys, woodwork, furniture, lead nipple shields and breast ointments with a lead base as the sources.