1. The Wonderworld of science, book three Title: The Wonderworld of science, book three Date: 1940 Author: Knox Illustrator: Illus. by Theodore Miller Collecting Area: Mathes Childrens Literature
2. The Wonderworld of science, revised book four Title: The Wonderworld of science, revised book four Date: 195- Author: Knox Illustrator: Illus. by Gertrude Howe, Robert J. Lee et al Collecting Area: Mathes Childrens Literature