General Interest Article
Proceedings of the Iowa Academy of Science
©1933 Iowa Academy of Science, Inc.
"Proceedings of the Forty-Seventh Annual Meeting of the Iowa Academy of Science, Held at Cedar Rapids, April 21 and 22, 1933: Minutes of the Meeting; Staff & Committee Reports,"
Proceedings of the Iowa Academy of Science, 40(1), 11-23.
Available at: https://scholarworks.uni.edu/pias/vol40/iss1/4