JOAN ECHOLS
Reading edition
University of Kansas Lawrence 1963 University of Kansas Publications, Museum of Natural History Editors: E. Raymond Hall, Chairman, Henry S. Fitch, Theodore H. Eaton, Jr. Volume 12, No. 10, pp. 475-501, 7 figs. Published October 25, 1963 University of Kansas Lawrence, Kansas PRINTED BY JEAN M. NEIBARGER, STATE PRINTER TOPEKA, KANSAS 1963