There is somewhat less reason for distinctive coloration of leaded gasoline, and considerably less for the use of signs warning the public of the presence of lead in the gasoline.

However, the observed change,, or a lack of change, in the concentration of lead in the blood,[if any,pwill provide useful information concerning the significance of the exposure to lead. 6.

Mr. fils co-Gill further informs me that lie has forwarded cer tain articles on the medical aspects of fcha handling of tetraethyl lead and leaded gasoline, as translated into Spanish.

*Toa 'Eat' lead Dally.

G.Od The lead concentration in the urine is indicative of r-ecent hazardous lead exposure.

Th ree new products, including an improvnJ soft paste white-lead, now make it ea-y to injure Dutch Bov quality throughout on every white-lead painting job.

Such therapy as was given will remove normal lead from the soft tissues and lower the concentration of lead in the blood and urines Such therapy will not, however, reduce a high level of lead in the body to the normal range.

As a consquence of these facts I think you will see that the exposure of Mr* ^ t o the absorption of lead com pounds wUs very minute, anc^ffln; unless he were so exposed over a long period of time it would not be possible for him to ab sorb a sufficient amount of lead to produce Illness* After a considerable amount of experimentation with tetraethyl lead and the products of decomposition, and after several years of observations of conditions similar to these in the industry, I think I can say with a certain assurance that the exposure to lead under these circumstances was negligible.

UNITED STATES OF AMERICA BEFORE FEDERAL TRADE COMMISSION In the of NATIONAL LEAD Matter COMPANY et al

Isthere lead contamination of the atmosphere?

Reinforced cames, as well as other came lead and solder, can be supplied by the' following branches: NATIONAL LEAD COMPANY 111 BROA&WAY, NEW YORK, N.

National lt\ul Comp my makes while lead ot rhe highest cprilir) ajui sells *r, nibedw'th pure linseed oil, is Dutch Bm white-lead.

However, the observed change,;, or a lack of change, in the concentration of lead in the blood,(if any,pwill provide' useful information concerning the significance of the exposure to lead. 6.

However, the observed change,, or a lack of change, in the concentration of lead in the blood,[if any,pwill provide useful information concerning the significance of the exposure to lead. 6.

Mr. fils co-Gill further informs me that lie has forwarded cer tain articles on the medical aspects of fcha handling of tetraethyl lead and leaded gasoline, as translated into Spanish.