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[A nine year-old Brazilian boy, displaying the hookworms and tapeworms he expelled when treated by the Rockefeller Foundation staff]. Photographic Print. 1 Image. [ca. 1920].
[Soper preparing for an inspection tour of Maranhao, Brazil]. Photographic Print. 1 Image. [1920s].
[Counting hookworms in prisoners in Asuncion, Paraguay] (image 1). Photographic Print. 1 Image. 1924.
[Counting hookworms in prisoners in Asuncion, Paraguay] (image 2). Photographic Print. 1 Image. 1924.
[A type of privy put in as a result of the campaign against hookworm in Paraguay] (image 1). Photographic Print. 1 Image. [1924-1927].
[A type of privy put in as a result of the campaign against hookworm in Paraguay] (image 2). Photographic Print. 1 Image. [1924-1927].
[A type of privy put in as a result of the campaign against hookworm in Paraguay] (image 3). Photographic Print. 1 Image. [1924-1927].
[A type of privy put in as a result of the campaign against hookworm in Paraguay] (image 4). Photographic Print. 1 Image. [1924-1927].
[Diagram of female hookworms used in public education lectures]. Slide. 1 Image. [n.d.].
[Diagram of male hookworms used in public education lectures]. Slide. 1 Image. [n.d.].