The doctor apparently considered lead or syphilis as the etiological factor and ia_jjyf^the opinion that recent blood tests have eliminated the latter.

Stains Shingle Stain* Oil Colors (One Grade Only) Varnishes,Clear,All types (c) Screen Paints or Enamels Zone or Trafflo Paints Paste Wood Fillers Paste Whites White Lead,Carbonate 4 Sulphate Blue Lead Sulphate Red Lead Zlr.e, in p-.

Tetraethyl Lead Area Lead pot and furnace, lead-sodium alloy, steam jet refrigeration, nitrogen, TEL building and wash house, and fluid blending building, together with necessary storage, purification and general facilities.

I then told the Lead Operators - Both V-ll and V-12 Leads to make sure that when a reactor was manually entered that the dump line was pressure checked after blank had been changed in the dump line.

Orthosilicate and silica gel (Dutch Bo y Plumb- -Sil) If lead silicate sulfate (Dutch Boy Tribase S) is the basic silicate which you suggested for testing, we have this formulation too.

Z~35 . 3 sr --; =^2T3 i .***3 NATIONAL LEAD COMPANY *yn<y>r iwnt.vft- rv.c'j *v<r?

I viim* .. 1 ' ' ,' '"leaded-taa m&d$ 'is a prtss&r aide in. retarding'eret< sad ' Mildew* "RpeoiaiSy Mleebed ealeiwa essrbesate estesfi?

Our second recommendation for performance would be Abex on the cam end of the trailing shoe and the anchor end of the leading shoe with Carlisle being on the cam end of the leading shoe and the anchor end of the trailing shoe.

LEAD INDUSTRIES ASSOCIATION 60 East 42nd.

Its position is somewhat different than that of a paint manufacturer (though poisonous properties of various lead compounds are not greatly different) In that much more stringent precautions are necessary in the handling; of T.E.L.

V.V \ LEAD IWDUCTi';:^ ArrSGStATION-------4 iMX-"H?

,i:MO',Kia;;iNatfoa*l Lead;ac Oil ;Cb/.of .?

In fact I should be surprised if certain of the men did not show evidences of lead absorption at present despite their brief exposure.

.# * com m ercial introduction of th i s substance* Inasmuch as i t i s understood th a t when employed in gas lin e e n g in e s , t h i s s u b sta n c e w i l l add a f i n e l y d iv id e d and non d if f u s ib le form of lead to the exhaust g a se s, and fu rth erm o re, sin c e lead p o iso n in g in human b ein g s is o f the cum ulative type re s u itin g fre q u e n tly from the d a ily in tak e of m inute q u a n titie s , i t seems p e rtin e n t to in q u ire w hether th e re m igit not be a decided h e a lth hazard asso ciated w ith the extensive use of lead te tr a eth y l in engines.

"The Toxicity of Tetraethyl Lead" by Dr.