If this assumption is correct, then there is no obvious reason for shifting the men from their present work, since i f ,there are no signs of lead absorption or lead poisoning, the occupational conditions must be regarded as safe from the point of view of lead absorption.

LEAD POISONING IN CHILDREN Historical - Comparat-1vely rare disease Use of lead nipple shields Use of cosmetics - face and neck - contaminating breast - Japanese Use of stains and dyes on hair - India More recently Frequent occurrence in Queensland ' Cilling attention to paints of high lead content Present problem In USA Sources Inside paint - floors and other woodwork - painted plaster walls - window sills .

Willoughby: Your letter to Dr# Kehoe of June 13th has been turned over to me as Dr# Kehoe eill be away this coming suaroer# We note that Dr# Kraemer is attempting to base his clinical treatment with colloidal lead on the blood lead-level* apparently using that as a guide to dosage# As Dr# Kehoe has reported, the blood lead-level is a variable factor and we have not enough data to establish the, normal variation except, as you have probably noted, enough to form an opinion that the normal is In the neighborhood of 0.05 mgs# per 100 ccs# ; Prom the studies of Weyraueh and others it would appear that there in considerable variation in individuals and in groups as well as a probable partition between plasma and cells# In '/lew of the possibility that lead is associated with the phosphorus in the blood s treaa, some worie certainly should be done to establish its partition# We have some references to work indicating that the lipoid phosphorus of the bio d is increased in lead poisoning, though no distributions of lead in blood in relation to phosphorus partition have been done as far as we know# You are quite welcome to such data as we have on the blood lead-level, and we will be glad to detail our method of preparing and treating samples if you so desire# It would seem, however, since you are dealing with an entirely different group of people that the best procedure after all might be to deter mine the normal level and range of variation for your own particular group# W would be happy to offer any suggestions for atfcack upon this problem if you will let us know exactly what you wish to do# Very truly yours.

Lord had a hunch that there was more to lead poisoning than anemia, constipation, paralysis, loss of appxrtite, nervous disorders and deposits of lead in the long bones and along the gums.

The amount of poisonous lead in people's blood fell an average 37 percent in the late 1970s, researchers say in to* . day's New England Journal of :; V r.'

Lead - Hi 111,<vyam per litre of urine l.ess then *01 p01 , 02 .03 *04 .*05 o6 07 Ho. of cases 4 28 25 1 These results may be regarded as typical of a cross-section of the Bri sbone conmunity* Che following tests were obtained from a lead poisoning case un dor treatment in Brisbane.

If this assumption is correct* then there is no obvious reason for shifting the men from their present work, since if,there are no signs of lead absorption or lead poisoning, the occupational conditions must be regarded as safe from the point of view of lead absorption.

Louis Post Dispatch, December 16, 1965, p. 11 F) on the symposium held last week on the effects of lead in the environment have quoted you as stating that a level of 8 micrograms of lead per liter of blood is the point above which lead poisoning may occur.

Pyruvate repre sents a focal point in intracellular carbohydrate metabolism which may oe deranged as well in some metal intoxications, notably arsenic, but also in lead and mercury poisoning to some degree.

Our members volun tarily took such a lead.

Our members volun tarily took such a lead.

Referring again to the question of jlead and d e a fn e s s , I may say th a t I f you have c a s e s of d eafn ess in which you s u s p e c t lead poison ing as an e t i o l o g l c f a c t o r , we should be glad to stu d y th e lead co n te n t o f th e b lo o d , the u rin e and the s p in a l f lu id in ord er to s e e w hether there are evidences of abnorm ality with resp ect to th e ir lead c o n te n t.

Dixie Lead Co.

Dixie Lead Co.

Dear Sirs I would appreciate receiving a copy of the proceedings of the program on the "Conference on Childhood Lead Poisoning".