THE 



KANSAS UNIVERSITY 

 SCIENCE BULLETIN. 



Vol. XIII, No. 2— May, 1920. 



CONTENTS: 



Pleistocene Mollusks from Wallace County Kansas, 



G. Dallas Hanna 



PUBLISHED BY THE UNIVERSITY, 

 LAWRENCE, KAN. 



Entered at the post-office in Lawrence as second-class matter. 



9-860 



