Dr. Noguchi left New York on October 22, 1927, for Accra, Gold Coast, West Africa. In his absence the observations on inoculated monkeys and the further transfer of the trachomatous lesions of the monkeys were carried out, according to his plans, by his assistants. Moreover, on several occasions during his absence, the monkeys were examined by Drs. F. I. Proctor, P. Richards, A. Knapp, J. S. Friedenwald, M. Cohen, and W. C. Posey, and the results of these examinations are recorded in the individual protocols. The last examination was made on May 25, 1928.

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