X 
CONTENTS. 
PAGE 
20. Suborder TUBINARES : Petrels 773 
60. Eaniily Procellariid^ . Petrels 773 
74. Subfamily Diomedeiua : Albatrosses 774 
75. Subfamily Procellanina : Petrels 776 
XIIL Order PYGOPODES : Diving Birds 787 
61. Family Colymbid.e : Loons 789 
62. Family Podicipedid.e : Grebes .792 
63. Family Alcid^ : Auks 797 
76. Subfamily Phaleridina : Parrot Auks, etc 800 
77. Snhiamilj Jlcincs : Guillemots, Murres, and Auks proper . . . 810 
PART IV. 
SYSTEMATIC SYNOPSIS OF THE FOSSIL BIRDS OF NORTH AMERICA. 
A. Tertiary Birds 822 
B. Cretaceous Birds 825 
C. Jurassic Birds 829 
INDEX 831 
