General Interest Article
Proceedings of the Iowa Academy of Science
©1917 Iowa Academy of Science, Inc.
"Proceedings of the Thirty-First Annual Session (of the Iowa Academy of Science), Held in Grinnell, April 27 and 28, 1917: Minutes of the Meeting; Staff & Committee Reports,"
Proceedings of the Iowa Academy of Science, 24(1), 11-16.
Available at: https://scholarworks.uni.edu/pias/vol24/iss1/4