TEANSA T IONS 



OF THE 



AMERICAN PHILOSOPHICAL SOCIETY 



HELD AT PHILADELPHIA, 



FOR PROMOTING USEFUL KNOWLEDGE. 



VOLUME XX.-NEW SERIES. 



PART III. 



ARTICLE V. — Fossil Mammalia of the White River Beds of Montana. By Earl Douglass. 



Article VI. — Results of Observation with the Zenith Telescope of the Sayre Observatory from April 1, 

 1876, to 'December 27, 189S. By Charles L. Doolittle. 



T II E A M E E I C A N P II I L S P II ICAL S C I E T Y , 



104 S. Fifth Street. 



1902. 



