You will note that for the month of January both the lead per gallon and percentage of samples over 3 cc continued their downward trend, but during February it increased to an alarming extent.

Horney#s letter as a matter of courtesy, they, could very properly point out in such a letter that, according to their best advice, " there is no reason to believe that a service station operator could ox* vould develop lead poisoning in any form as a consequence cf his handling of leaded gasoline.

He began work with the Company in 1928 as a Carter Lead salesman in Ohio.

(s t r e e t ) Detroit (c it y ) n ame o f t h is p l a n t : Acme White Lead & Color Works Ad o r es s o f t h is p l a n t : ,8250 St.

In this case, there would be no question of thermal decomposition and filtration of the lead.

On the other hand the question is now of paramount importance in view of the considerable quantities of leaded gasoline which are and will be shipped by tanker. .

We can n ot perm it people to con tin ue working in d e fin it e ly in an environment t h at cau ses h igh le v e ls o f le ad absor pt ion and hojpe to avoid lead poison in g.

Paul, Minnesota, for lead analyses.

White Lead 35% Leaded Zinc Asbestine Titanium Dioxide LB. 168 264 140 96 VEHICLE: 35.5% K.P.O.

Machle 0022557 k>py for DR Et h y l Ga s o l in e Co r p o r a t io n Ch r y s l e r b u il d in g 405 Le x in g t o n Av e n u e Ne w Yo r k October 31, 1040 TO ALL DIVISION HAHAGBSS fontleiaenj Information lias reached us that certain oil companies employ tasting laboratories to establish. conditions in their tanks before entering thea for cleaning* This usually takes the fora of detorniirJLng vihathor the tank is gasfree* Rocently, one company called in the Detroit Testing Laboratory to make certain, analyses* They used a combustible gas indicator and made certain other teats, the exact nature of which we do not know, and when askod about the condition of the tank they assured the samgej&ent that it was safe for men to enter* The mamgonent then asked specifically about the lead hazard and the representative of the Detroit Testing Laboratory assured the manager that the lead hazard ma insignificant and tlio nan could go ahead and clean without precautions* Upon receipt of this infbrmtion, Hr* Boudreau had one of his men call on the Detroit Tooting Laboratory and explain the matter to thea* How ever, it scores that if such info relation is being given by the various testing laboratories and tills is the procedure at any other points* it certainly would be a good idea for our people to contact these testing laboratories and ex plain precautionary measures to be takon in the entrance of tanks which have contained leaded gasoline* Therefore, if you have any such major testing laboratories in your division, please have someone inquire us to whether they carry on this type of work and, if so, sake sure that thoy tlroughly understand the nature of the load hasard* Very truly yours*?

IJlst Street, Cleveland, Ohio, for lead analyses.

In July the White-Lead Agency Plan was discontinued in favor of direct sales, under the careful handling of A.

I have received word from Doctor Lanahan that the Executive Vice President of the company is now in favor of periodic lead determinations in urine, and has asked for a detailed program.

' Analysis of Blood and Urine for Lead i 1 j *J j

Incidentally, the figure of 0,1 mg. per liter (which is the same as 0.1 part per million), is generally regarded as the maximum permissible lead concentra tion in water used =for drinking and cooking.