General Interest Article
Proceedings of the Iowa Academy of Science
© Copyright 1942 by the Iowa Academy of Science, Inc.
"Proceedings of the Fifty-Sixth Annual Meeting of the Iowa Academy of Science, Held at Mt. Pleasant, March 17 and 18, 1942: Minutes of the 1942 Meeting,"
Proceedings of the Iowa Academy of Science: Vol. 49:
, Article 4.
Available at: https://scholarworks.uni.edu/pias/vol49/iss1/4