lo case of acuto tetraethyl lead poisoning has been seen to persist with active symptoms or evidences of abnormal lead excretion through such a period. 5* The lead examinations reported by Dr.

On the other hand, there is every reason to believe that prolonged slight exposure would result in the usual clinical manifestations of chronic lead poisoning.

Since the values reported in the analyses are considerably under 40 p.p.m and 20 p.p.m. of lead, it leaves doubt in our minds that the cattle actually died from lead poisoning.

Lead Content of Feed Responsible for Poisoning Dairy C o w Article Lead Content in Mg. per kg, (p.p.a.)

Anderson represent Cary French and her parents in reference to lead poisoning suffer ed by Cary French, who was born in January, 1975, and at the approx, age of three months was taken off of cow's milk and put on a formula of goat's milk, which she consumed for a period of approx, six months, at which time it was determin ed that Carrie French has suffered permanent brain damage, as a result of lead poisoning.

My supply of reprints of this article Is exhausted* We have other clinical data on tetraethyl lead poisoning which has not been published bub which I hope to get into print some time in the near future* The article on "The Behavior of Lead in the Animal Organism II Tetraethyl Lead", and the series of articles "On the Normal Absorption and Excretion of Lead" are among the last of my copies.

We have had several thousand men under our care in this country for years without having had a single case of lead poisoning* This, I am sure, is because actual lead absorption has been reduced practically to the vanishing point in men engaged In this xtork, I am sure that this will be the case everywhere if tho work la done properly* Tou will note that the Initial symptoms of significant exposure to tetraethyl lead differ quite appreciably from the customary clinical picture of lead absorption* On the other hand, there is every reason to believe that prolonged slight exposure would result in the usual clinical manifestations of chronic lead poisoning* Accordingly wo make It a practice to examine every man carefully with reference to suggestive acute symptoms, as well as the blood and other clinical evidences of chronic lead absorption* Our studies on the lead excretion of men In this work have demonstrated that there occupational load absorption is insignificant if the conditions of their work are as they should be.

You have no evidence of lead poisoning but you have absorbed more lead than is good for you* For that reason we suggest that you be more careful in carrying out whatever suggestions are made to you in protecting yourself against lead poison ing in the future.

My supply of reprints of this article Is exhausted* We have other clinical data on tetraethyl lead poisoning which has not been published bub which I hope to get into print some time in the near future* The article on "The Behavior of Lead in the Animal Organism II Tetraethyl Lead", and the series of articles "On the Normal Absorption and Excretion of Lead" are among the last of my copies.

We have had several thousand men under our care in this country for years without having had a single case of lead poisoning* This, I am sure, is because actual lead absorption has been reduced practically to the vanishing point in men engaged In this xtork, I am sure that this will be the case everywhere if tho work la done properly* Tou will note that the Initial symptoms of significant exposure to tetraethyl lead differ quite appreciably from the customary clinical picture of lead absorption* On the other hand, there is every reason to believe that prolonged slight exposure would result in the usual clinical manifestations of chronic lead poisoning* Accordingly wo make It a practice to examine every man carefully with reference to suggestive acute symptoms, as well as the blood and other clinical evidences of chronic lead absorption* Our studies on the lead excretion of men In this work have demonstrated that there occupational load absorption is insignificant if the conditions of their work are as they should be.

o l La a /: During the last few months I have been discussing with some of my friends and former colleagues the broad question of the diagnosis of lead poisoning.

Due to the danger of lead poisoning from the careless handling of gasoline, every effort should he made to prevent and control this occupational hazard* 2.

In a lead worker these are strong evidence of poisoning but, apain, require supporting laboratory evidence of high. l^ad absorption.

(It was believed on clinical and analytical grounds that the latter man may have suffered a mild episode of lead poisoning.

Kehoe: I appreciate more than I can express to you the time and trouble you took in your letter of February 7 to answer mine of January 19 on the Byers and Lord article on lead poisoning.