A MANUAL 
OF THE 
VERTEBRATE ANIMALS 
OF THE 
NORTHERN UNITED STATES 
INCLUDING THE DISTRICT NORTH AND EAST OF THE 
OZARK MOUNTAINS, SOUTH OF THE LAURENTIAN 
HILLS, NORTH OF THE SOUTHERN BOUNDARY 
OF VIRGINIA, AND EAST OF THE 
MISSOURI RIVER 
INCLUSIVE OF MARINE SPECIES 
BY 
DAVID STARR LOR DAN 
PRESIDENT OF LELAND STANFORD JUNIOR UNIVERSITY 
NINTH EDITION 
NEWLY REVISED AND ENLARGED 
CHICAGO 
A. C. McCLURG AND COMPANY 
1904 
