CONTENTS 



PAGE 



i. The Fauna of Boulder County, Colorado, II . . .41 



T. D. A. COCKERELL 

 Professor of Systematic Zoology 



2. The Mollusca of Colorado, III S3 



Junius Henderson, B.A. 



Professor of Natural History, Curator of the Museum 



3. Protozoa of High Mountain Lakes in Colorado . . 65 



C. H. Edmondson, Ph.D. 



4. Animals and Plants Described as New frohi Colorado 



in 1911 75 



T. D. A. COCKERELL 

 Professor of Systematic Zoology 



5. The Sawflies of Boulder County, Colorado . . 91 



SlEVERT A. ROHWER 



6. Preliminary List of the Algae of Colorado . . 105 



Wilfred W. Robbins, M.A. 



Instructor in Biology 



7. Some Desmlds 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. 



