LEAD INDUSTRIES ASSOCIATION aatramtaaoiijewcauitxxx 60 East Ij2nd Street H.NKW YORK 17.

The key to success In handling lead powders Is adequate ventilation.

' -j s *;* BBI- 'V, `-^h 4 ,-t.W For Majiy-Types of Finishes Fohj^^^inds of Surfaces V paml made with Dutch Boy White-Lead "i \ AINTERS everywhere find Pthat pure white-lead--like Dntch Boy white-lead 'serves I them in matry.ways.--..

Figure 2. - Distribution of blood lead and urinary lead values (dithizone method) in relation to atmospheric lead concentration.

Zapp: Thank you for writing to me about the problems of childhood lead poisoning.

It may be that we have not .made our point clear, hy the ``normal range of lead in blood11 we mean the levels we found in a series of children exposed to the environmental lead of a city like London but who have not been chewing at all sorts of objects.

. (*102 mgs) of lead per (100 oc) and the spinal fluid -' U)lk rags.) of lead;per (lQOce)* Both of these results ._ are .In the upper, normal Hailts, the spinal fluid contain* hr Ing only about a third the amount offload we have found ,* In lead encephalitis* Both could be somewhat over noraal.^ because of his exposure to lead over'a long period TJ likewise because of his present illness which would raise ^ ' jifr Y his circulating lead due to the acccoapanying acidosis* .

NATIONAL LEAD COMPANY 111 Broadway.

January 13. 1932 The Eagle-Picherr Lead Commppaann;y (Attention Ur.

Those specimens will be analyzed for lead.

He suggests that if the lead figures are normal it should be considered, and further that I .

13 jart toned k :* tha lead Industrio* Association.

Kehoe: IN REPLY PLEASE REFER TO 7670 - Additives Toxicity Tetramethyl Lead It was good to talk with you the other day and I am very grateful for your confidence and also for your very prompt reply with the toxicity data on tetramethyl lead.

Any information regarding exposure to lead and previous medical examinations can no doubt be obtained from the Eagle-Picher Lead Company.

Joseph Lead Co. , J McCullough, President of the Lead 4 Zinc Division of American Metal Climax, Inc., and H.