General Interest Article
Proceedings of the Iowa Academy of Science
©1919 Iowa Academy of Science, Inc.
"Proceedings of the Thirty-Third Annual Session (of the Iowa Academy of Science), Held at Cedar Falls, April 25 and 26, 1919: Minutes of the Meeting; Staff & Committee Reports,"
Proceedings of the Iowa Academy of Science, 26(1), 15-24.
Available at: https://scholarworks.uni.edu/pias/vol26/iss1/4