Vormser on various phases of the subject of lead poisoning In children.

Ur* Keith D Fairley 2 As to the treatment of lead poisoning and the use of lead compounds in the treatment of malignant tumors, all i can say is that our experience has nob been instructive# It Is still true, I believe, that although most cases`of lead poishning are mild and tend to clear up of their own accord, the best treatment of poisoning is to prevent it# The cases of poisoning from organic compounds of lead are likely to be severe, and in oxir experience which fortunately has been limited, the best results have been obtained by treating these acute cases on the assumption that the chief thing to be combafeSd 'Is cerebral edema.

D LEAD INDUSTRIES ASSOCIATION.

Pig Lead Sales b.

Now as to the condition of the lead in or on the fur.

American Smelting & Refining Co. fiecla Mining Company National Lead Company National Lead Company St.

Joseph Lead Co.

Quality Seal Other Lead Free and Leaded 460,350 Lbs. 31.100 Lbs. 1.853.300 Lbs. 1.744,750 Lbs.

-TfoHtf' - NATIONAL LEAD COMPANY cv^*.ATMhT/C flAAVCH .

D LEAD INDUSTRIES ASSOCIATION.

Committee for Lead Elimination in the District Mr.

Generally, th severity of the symptoms correlate with the height of the lead coneen t ra"Ion, hut this Is sot always true# I think it is quite safe to say that the presence of one tenth, of' a milligram of lead per 100 grams of blood Is indicative of a recent significant exposure to lead# and although symptoms may not be present at this concentration# the existence of symptoms resembling those of plumbism may be adequately explained* X should be inclined,# at present# to regard, values under one . tenth of a milligram of blood as significant only if repeated observations confirm this as the basic level of lead concentration rather than a chance high..value.,..

Joseph Lead Co.

No tetraethyl lead Is present except that minute trace vhich is the result of contact vith gasoline containing tetraethyl lead.

I refer to the latter mechanism as questionable beoause I have never been able to find any adequate evidence that lead absorption and lead intoxication produce vascular disease.