General Interest Article
Proceedings of the Iowa Academy of Science
©1938 Iowa Academy of Science, Inc.
"Proceedings of the Fifty-Second Annual Meeting of the Iowa Academy of Science, Held at Sioux City, April 15 and 16, 1938: Minutes of the 1938 Meeting; Staff & Committee Reports,"
Proceedings of the Iowa Academy of Science, 45(1), 19-30.
Available at: https://scholarworks.uni.edu/pias/vol45/iss1/4