Document yrJvd9EOwm27RR5EvywyQDZe6

Ph o n e : Stewart y .OZZ LABORATORY OF POLAROGRAPHIC ANALYSIS 7 0 0 2 SO U TH H AUSTED ST R EET CHICAGO, ILLINOIS Marche, 1941 H O Y A. C R A N S T O N Robert A. Kehoe, M. D. lettering Laboratory of Applied Physiology Eden Avenue Cincinnati, Ohio. Dear Dr. Kehoe: The specimens arrived safely. Eefore 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 th is 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