Document g8dVDNjQp71B4a7RR6zg4qV3

Ph o n e : St e w ar t 2022 LABORATORY OF POLAROGRAPHIC ANALYSIS 7002 SOUTH HALSTED STREET CHICAGO, IIAIBrOIS MarcM, 1941 HOY A. CRANSTON Robert A. Kehoe, M. D. Kettering Laboratory of Applied Physiology Eden Avenue Cincinnati, Ohio. Dear Dr. Kehoe: The specimens arrived safely. Before proceeding with the polarographic analysis I should like to know the present composition of the sample and whether the total amount represents 100 c.c. of urine or whether we should take an aliquot for this amount. I am sorry to bother you about the above but I am particularly anxious to get as close a check as possible, and I did not wish to spoil any of the samples. Sincerely yours, HAC/LC 0015126