General Interest Article
Proceedings of the Iowa Academy of Science
© Copyright 1963 by the Iowa Academy of Science, Inc.
"Proceedings of the Seventy-Fifth Meeting of the Iowa Academy of Science at Iowa State University, Ames, April 19 and 20, 1963,"
Proceedings of the Iowa Academy of Science: Vol. 70:
, Article 5.
Available at: https://scholarworks.uni.edu/pias/vol70/iss1/5