Joseph Lead Co.; J.

Our red-lead, litharge, orange mineral, basic lead sulphates and lead acetates can be relied upon for purity and uniformity.

Princi Lead Analyses URINE Analysis Number Volume Specific Gravity Mg.

Ox id e o f Le TTOR lead oxides and other lead pigments, get in touch with us.

INTER - OFFICE CORRESPONDENCE Et h y l Ga s o l in e Co r p o r a t io n Ch r y s u j r Bu il d in g -105 Le x in g t o n Av e n u e Ne w Yo k k June 7, 1937 Dr* Robert A Kehoe My dear Bobt With further reference to your letter of May 24th,, I enclose copy of Report CR-20 in v/hich there are a number of analytical data giving the amounts of lead in crankcase oil* It may be pointed out that soluble lead as shown in these analyses does not necessarily mean alkyl-lead compounds as there are a number of lead salts of organic acids soluble in oil Our laboratory reports no information on the use of leaded gasoline in engines located in mines* Of course, many stationary engines are run on leaded gasoline in laboratories and there is certainly no reason to expect any trouble from this source provided the exhaust gases are properly piped

Dukes and I have confirmed other people's findings that the ingestion of lead by rats leads to the formation of carcinoma of the kidney.

Is it Lead oxide?

LIA24637 LEAD INDUSTRIES ASSOCIATION t*t MADIION AV K N UI NCW VORK 17.

What has the Lindbergh Beacon to do with ANACONDA WHITE LEAD?

Epidemiological study of workers exposed to lead chromate pigments.

Big& in 20 'Come on, pop. at least let's give this : Anaconda White Lead a try."

Barnes (see letter of 1-9-1+6 ) Organic and inorganic lead distribution w Analysis Number Description TEL I(.6a -79 Bottom sludge (see letter noted above) O.O63 Triethyl Lead 0.017 Per Cent Lead Diethyl Lead Halides Di and Triethyl Lead Halides and Carbonates 0.01 0 .001+ Inorganic Lead 0.68 1+6a -8o Side wall scale before burning with oxy-acetylene O.OOOlj. 0.0005 0.001 0.0003 O.58 ]+6a -8i Side wall scale knocked off during burning 0.0000 0.0000 0 .0001- 0.00015 O.73 1+6a -8 2 Sample of side wall scale after burning 0.0000 0 .0001- 0.00013 0.0013 0.68 K O Reported: 1-25-1+6

We are deeply concerned with the use. of lead in paint and specif ically lead in marine aritifouling paint.

x c Try Anaconda White Lead today.

Tetra-ethyl lead poisohing from Ethyl Gasoline has not to our knowledge yet occurred.