Document 3e61Q53BbEE1JGZj3K4bqkwjx

TELEPHONE HARRISON 6 8 5 4 t DR. JOHN D. ELLIS 122 SO U TH M IC H IG A N A VEN U E C H IC A G O 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 K H 0015389