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 ge/lrj Enc K* 0015425

Look Ahead with Lead

itremely duriBlelan^ long-lived, ,The national Lead Co.. visa sells "United Tubond" chemical lead lined pipe, "United"' 1 lead lined fittings and "United' lead lined ' valve*, fan handling- dilute sulphvricr sulphur- one and other acids, mine and salt water, etc.. .

reputedly has lead intox ication from c d H S o ^ T R n leaded gasoline and I am writing you to sk if you will not be so kind an to let us have ooise of the facts on the case.

C., PHONE 523-1230 :;vGOT LEAD August 18, 1964 The Kettering Laboratory College of Medicine Eden Avenue Cincinnati 19, Ohio Attn: Dr.

Sunn: I enclose a copy of a letter which I have just reeieved abofct lead poisoning.

The fact that three filters in series catch no more lead than one, and that all the lead re tained is on the first filter, strongly suggests that the loss is in the form of lead which goes right through the filters.

ANACOKDA LEAD PRODUCTS COMPAKT, IrD.l HEHNES5T, BtortUui.

Moreover, I am sending one other reprint entitled "The Behavior of Lead in the Animal Organism II Tetraethyl Lead", of which ray supply is now exhausted.

Lead, Tin, Aluminum, Copper and Silver - Cholak and Story determination of Lead in Biological Material - Cholak and Bambach l n d CCholakiC Deposition of Lead from Biological Material - Bambact Spectroche/mlcal Determination of Trace Metals in Biological Material - Cholak ana Story

sentative, to Cranterfc some 3^500. ppmada of lead `.at al^e 'cents. perpjipyd- ' Swc Sl>`, T-VC*trfVtaait of JJttUifiA*- ,, ,

Mon of the ste-n Included in the survey gave any evidence of illness referable to the absorption of lead, whether of complaints, physical sign !

This loss is substantially constant* This method is* therefore* quite serviceable in dealing with quantities of lead above 0*2 mgs* per sample.

Khat is the lowest lead content you can reaeh, and still use lead driers?

It would, therefore, be appreciated if you would pass to us data which would serve to en lighten those who are presently concerned about the absorbing of lead through the respiratory tract inasmuch as lead is a cumulative poison.