CONTENTS 



Original Papers 



Page 

 Physical Chemistry. — A convenient form of autoclave. George W. Morey. 205 



Mineralogy. — Leverrierite from Colorado. Esper S. Larsen and Edgar T. 



Wherry 208 



Medical Zoology. — The carriage of disease by insects. L. O. Howard 217 



Ethnology. — Remarks on American Indian languages, a study in method. 

 Truman Michelson 222 



Abstracts 

 Geology 235 



Proceedings 



The Philosophical Society of Washington 236 



The Biological Society of Washington 239 



