General Interest Article
Proceedings of the Iowa Academy of Science
©1920 Iowa Academy of Science, Inc.
"Proceedings of the Thirty-Fourth Annual Session (of the Iowa Academy of Science), Held at Iowa City, April 23 and 24, 1920: Minutes of the Meeting; Staff & Committee Reports,"
Proceedings of the Iowa Academy of Science, 27(1), 13-23.
Available at: https://scholarworks.uni.edu/pias/vol27/iss1/4