Many newborn infants had FEP values higher than those ofnormal children, and these elevations did not appear to reflect lead poisoning.

In children, symptoms of lead poisoning have been observed at blood lead concentrations of 60 micrograms, and suggestions have been made to lower the danger line for children to 40 micrograms.

It happens that I have seen cases of load poisoning from the use of lead arsenate sprays.

Minot, Fairha.ll and bheir associates, in an extensive analysis of lead poisoning, The lead manufacturers subsequently gave acre money, A large voluae of published work resulted, laid the facts brought out have had much to do with ohanging the point of view in treating lead poisoning ram in fully understanding the pathogenesis of the condition.

X suppose you would agree generally with this; we all Know the danger of lead poisoning, and that a certain amount of lead is necessary to produce lead poisoning* But if you have; an infinitesimal amount of lead in a river, that is not dangerous.

It may be considered that the greatest risk of lead poisoning occurs when a dry paint film is disturbed.

It may be considered that the greatest risk of lead poisoning occurs when a dry paint film is disturbed.

I refer here to the leudl of 0.09 mg. of lead per 100 grams of whole bloody, as the threshold for the occurrence of lead poisoning.

Due to differences in the digestive systems, cattle are more susceptible to lead poison ing than huroans.

S*fa first of these - lead poisoning should b completely eliminated on the ground that there is no evidence of a suggestive exposure to lead compounds, there is no evidence that lead absorption ocourod and moreover, the cl'nical findings wore not in any way characteristic of lead poisoning* The only suggestive evidence of lead absorption consists in the fact that on of the physicians stated that he observed a lead line on the gums* This lead line was apparently fleeting and it occurred at a time when on Sould have expec ted some degree of congestion of the g ^ margin* It is my experience that the bluish appearance of the gums is often present and that sometimes it is quit difficult through the us of ordinary technique, to differentiate the blueness of congestion ahd the blueness of 'lad Xihe* In fact, unless one compresses the gum and looks with a hand lens and establishes the fact that the blue* ness is punctate in character, one is not certain whether or not a lead line actually exists* It has been said that a lead analysis of the urine at the tira of the symptoms , failed to demonstrate the presence of lend* Such evidence I an sorry to say is of little consequence sinoe the volume to find amounts of lead which arc normally present in the urine indicates that the technique of the examination was faulty, or that the quantity of the sample examined was . inadequate* Nevertheless, in view of the clinical and experimental .evidence...which is available, I think we shall have to conclude that lead poisoning is the most unlikely interpretation of this man*a Illness* i:. : .

I refer here to the lendl of 0.09 mg. of lead per 100 grams of whole bloody, as the threshold for the occurrence of lead poisoning.

This same book contains the results of Dana's own investigation of lead poisoning from lead plumbing.

K' f LEAD INDUSTRIES ASSOCIATION 410 UCnNOTON AVXNUO MCWTOAK IT, N.

ggSSTlOH: July 6, P33 lead, poisoning* #15.71 ?.

Numerous cases of lead poisoning have been reported from such activity i|n the past.