Title supplied. Caption: "The 'balsa' or raft on which Dr. Wilson and Dr. Sawyer returned from Purification to Girardot down the Magdalena River. It is raining and the river is in flood. W.A.S. and two boatmen on the raft. The raft is made of banana stems tied together with vines".

Cartoon #1. Illustration by B. Stephany.

RF photo #444.

Cartoon #18. Illustration by B. Stephany.

Cartoon #17. Illustration by B. Stephany.

Wickliffe Rose describes the work of the Rockefeller Sanitary Commission during the period 1909-1914.

John F. Kendrick discusses the Rockefeller Foundation's work on Hookworm in India.

John F. Kendrick discusses the proposed Hookworm campaign for 1927-28.

Victor G. Heiser discusses transferring responsibility for the Hookworm campaign in Madras, India to the local government.

Memo regarding the Rockefeller Foundation's work in curing Hookworm in the United States up to 1942.

Memo regarding the Rockefeller Foundation's policy in offering support for curing Hookworm to State governments within the United States.

Describes how hookworm is spread. Shows hookworm under a microscope and how it often enters the human body.

Details symptoms of both mild and severe cases of hookworm. Shows children affected by the disease.

RF photo #403.

RF photo #201 D3a

Caption: "Hookworm treatment at the rural schools. Every child in the school was infected." RF photo #10804.