Document b5Mr65b8kkqKRRL6XO7jEJkd6

DR. JOHN D. ELLIS 122 SOUTH 'MICHIGAN AVENUE CHICAGO June 12, 1935 Kettering Laboratory of Applied Physiology University of Cincinnati Cincinnati, Ohio Gentlemen: I have a -specimen of spinal fluid taken from a case of possible lead poisoning and I would like to know what you would charge the insurance company to make an electro-spectrographic examin ation of this specimen for the percentage of lead. Sincerely yours. JDE:B I KE? 0015389