iv CONTENTS 



2. Remarks on the Climatology of Northwestern 

 Colorado 112 



W. W. Robbins, M.A. 



Instructor in Biology 



3. A Botanical Trip in Northwestern Colorado . . . 115 



W. W. Robbins, M.A. 



Instructor in Biology 



4. Mollusca Collected ln Northwestern Colorado in 

 1909 '. 125 



Junius Henderson, B.A. 



Curator of the Museum 



5. Some Insects Collected ln Northwestern Colorado in 

 1909 126 



T. D. A. COCKERELL 



Professor of Systematic Zoology 



6. Reptiles and Amphibians of the University of Colo- 

 rado Expedition of 1909 130 



T. D. A. COCKERELL 



Professor of Systematic Zoology 



7. Notes on Birds and Mammals of Northwestern Colo- 

 rado 132 



A. H. Felger 



8. Fossil Invertebrates from Northwestern Colorado . 146 



Junius Henderson, B.A. 



Curator of the Museum 



9. Fossil Plants from the Mesa Verde Cretaceous . . 149 



T. D. A. COCKERELL 



Professor of Systematic Zoology 



10. Bibliography of Papers Dealing with the Geology and 



Natural History of Northwestern Colorado . . . 151 



