Scientists explaining sanitation, Sichuan, China, ca. 1920-19301920-1930Also included in the International Mission Photography Archive.Snapshots showing daily life of investigators of Cheeloo Graduate Division of Parasitology during hookworm study expeditions in West China "An assistant distributing feces-containers to a group of farmers for examination of intestinal parasites." A man is hanging out what appear to be pieces of paper to the people around him. They are all standing in front of a shop.still image