My only suggeswould be t h e p o s s ib le in c lu s io n o f a b r i e f summary a t th e end o r a t th e s ta r t alone such p o ssible lin e s a s- importairb p o in ts . in t h i s volume are s- by th e in v e s tig a tio n s - - The development o f chem ical and sp ectro g rap h ic methods V -- ---- f o r th e d e te rm in a tio n o f sm all q u a n t i t i e s o f le a d i n f- -- -------b io lo g ic a l m a te r ia l* , E stablishm ent of existence^and magnitude of normal lead -- in b o th p r im itiv e and c i v i l i z e d man^togolhw r wit h - seme ' - in d ie a tin n of -t h e - so u rc e s -o f t h i s l e a d , jfSS/P The b e h a v o ir o f t e t r a e t h y l le a d i n th e human organism } aJ>9 M, tre a tm e n t o f le a d in to x ic a tio n produced by c o n c e n tra te d tetraethyl. lead

Lead Metals The distribution of lead poisoning is quite extensive.

Lead Metals The distribution of lead poisoning is quite extensive.

This aspect has bean dealt with in considerable detail in a publication entitled "Memorandum on Handling of Gasoline con taining Tetraethyl head" by Dr* a,A.

office,', if.your own investigations -`lead you to conclude (that the statements mad e 'in .this report are v: erroneous, I';earnestly.

The disease in this caso was lead poisoning contracted through continued work handling scrap metals, including lend.

The fibrosis continues to build up whether the worker is exposed or not and eventually leads to incapacity.

Lead Metals The distribution of lead poisoning is quite extensive

, to produce tetraethyl lead for gasoline, and Director of the Kettering Laboratory at the University of Cincinnati, a leading center for medical research on lead.

*3** pentane-soluble lead was extracted from the homogenate.

Hobertss ,1. received through Mr* Charaplin a copy of the decree issued by the Venezuelan geyernraeni setting forth, the candit lone for the nale of asollft.' treated with tetraethyl, load*.

Hobertss , 1. received through Mr* Charaplin a copy of the decree issued by the Venezuelan goycrnraent setting forth, the candit ions for the nale of asolifte/ treated with tetraethyl load..

' * 1tilth reference to the inclusion of certain information with respect to the-manufacturing of tetraethyl lead and Ethyl Fluid in the operating manual for safety engineers, h a v e a .suggestion to offer to which 1 would like to have your reaction* .

.\ \ < \ ' / * We set up experimentalN^ilte^s here at the plant and found that we could successfully filter the sludge aadNredover the liquid part, diluted with kerosene, in which there was a high/4 >ereentagexpf\tetraethyl lead (between 20% and 30$), However, we have some regard 'to handling the job in this manner when it comes to fWi&\ work, in which th equipment is mounted on a mobile unit with the facilities nob, b'ei^g) quit as ideal as they would be on a stationary unit such as we eohMAnstallN^>fene plant.

W e had been working on the problem of tetraethyl lead for some y e a r s a n d we had made some progress toward the understanding of ;this problem.