CHAP. XV.] THE NEARCTIC REGION. 139 



TABLES OF DISTEIBUTIOK 



In drawing up these tables, showing the distribution of 

 various classes of animals in the Nearctic region, the following 

 * sources of information have been chiefly relied on, in addition to 

 the general treatises, monographs, and catalogues used in the com- 

 pilation of the 4th Part of this work. 



Mammalia. — Professor Baird's Catalogue ; Allen's List of the 

 Bats ; Mr. Lord's List for British Columbia ; Brown, for Green- 

 land ; Packard for Labrador. 



Birds. — Baird, Cassin, and Allen's Lists for United States; 

 Eichardson's Fauna Boreali Americana ; Jones, for Bermudas ; 

 and papers by Brown, Coues, Lord, Packard, Dall, and Professor 

 Newton. 



