QL 



UC-NRLF 



C 2 773 



FURTHER RESEARCHES 



NORTH AMERICAN 



BY 



ALBERT PITTS MORSE 



Research Assistant, Carnegie Institution of Washington 



Curator of Zoological Museum, Wellesley College 

 Instructor in Zoology, Teachers' School of Sciences, Boston 



PUBLISHED BY THE 



CARNEGIE INSTITUTION OF WASHINGTON 

 1907 



