PAGE 



6. Preliminary List of the Algae of Colorado . 105 



Wilfred W. Robbins, M.A. 



Instructor in Biology 



7. Some Desmids from Alpine Stations in Colorado . 119 



G. H. Wailes 



8. The Grass-Flora of Tolland, Colorado, and Vicinity . 121 



Francis Ramaley, Ph.D. 



Professor of Biology 

 AND 



Miss Mary Esther Elder, B.A. 



No. 4 



1. The Continuity of Bergson's Thought 147 



Melanchthon F. Libby, Ph.D. 



Professor of Philosophy 



