Gorgas Memorial Institute of Tropical and Preventive Medicine. Annual report Gorgas Memorial Institute of Tropical and Preventive Medicine (Inc.), letter from chairman of Gorgas Memorial Institute transmitting annual report from Gorgas Memorial Institute of Tropical and Preventive Medicine (Inc.), covering activities of Gorgas Memorial Laboratory in Panama, with statement of receipts and disbursements, Nov. 1, 1930-Oct. 31, 1931.

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