Joseph Lead Compeny atmospheric survey has been continued.

Joseph Lead and Chairman of the Founda tion's Board; John F.

Xehoe: '.Ye are mailing to you under separate cover a specimen of blood for routine examination of lead.

Director, Kettering Laboratory College of Medicine Eden Avenue Cincinnati 19, Ohio Dear Bob: I have noted the abstract of a paper by Ryder Cholak and Kehoe on ''Influence.of Dithiopropanol (BAL) on Human Lead Metabolism."

Dear Doctor Calingaert l , On March 22 Doctor Kehoe wrote to you, sending you a copy of "A Study of the Relative Evaporation Rates of Tetraethyl Lead from Gasoline and Vitol* and. requesting :Iyour considered judgment as to its validity in relation to the practical problem presented Doctor Kehoe recalls receiving your comments, but is unable to locate the letter.

>*T ISCCM3 - ^VSITIHO uEPAmMSRT Tooala Lead Plant Tcoala Copper Plant Tooele Sulphide concentrator Ophir mil Plant .'.Iasi riant laduet: Trammy Operations Cut*Ida exploration "ailing CooBiaaloa rtmt down mrpenaaa: Oxlda Concentrator Klao Conoant rat or Leaa - Depraolatioa Hf IHCOUS Uonth of January u e.soo 15,000 M.500 10.000 2 *8.000 I 450 3,600 3,900 630 J 8.600 } 39,200 18.895 t 20,305 :.

McCord has been good enough to suggest to us that we write you for literature upo# the pre vention and treatment of lead poisoning.

Since I am of the opinion that he would be interested in seeing the paper ''Evaluation of Urinary Lead Determinations in the 'Control of Industrial Exposures," and since his time will be rather limited, I suggest you forward the manuscript at the earliest possible time so that it will be received here the early part of next week.

NATIONAL LEAD COMPANY RESEARCH LABORATORIES 105 YORK STREET BROOKLYN l, N.Y.

Dunn, Jr*, lational Lead Company Kesearch Laboratories, 105 York S-treet, Brooklyn 1, Uev York.

In other w;ords had the first doctor's diagnosis been allowed to stand as lead poison ing it would have been too bad.

Kehoe: In reply to your letter of October 30, I am quite sure that any additional changes made in my manuscript as part of the lead symposium will be acceptable to me.

Joseph Lead Company atmospheric survey has been continued. .

Duo Servo or leading/trailing brakes.

Kehoe: On my return from the South I was de lighted to find awaiting me a sheaf of articles on the Queensland lead poisoning-chronic nephritis con troversy, which I shall study with much interest.