This paper is the result of a bibliographic study of lenses, on the part of Lloyd North and the writer. In the literature some thirty-two genetic types are described. In the present paper these types are classified and described. A bibliography is appended.
Proceedings of the Iowa Academy of Science
©1922 Iowa Academy of Science, Inc.
"Classification of Lenses,"
Proceedings of the Iowa Academy of Science, 29(1), 128-128.
Available at: https://scholarworks.uni.edu/pias/vol29/iss1/24