General Interest Article
Proceedings of the Iowa Academy of Science
© Copyright 1958 by the Iowa Academy of Science, Inc.
"Proceedings of the Seventieth Meeting of the Iowa Academy of Science held at Drake University, Des Moines, Iowa, April 18, 1958: Minutes of the 1958 Meeting,"
Proceedings of the Iowa Academy of Science: Vol. 65:
, Article 4.
Available at: https://scholarworks.uni.edu/pias/vol65/iss1/4