x CONTENTS. 
A PAGE 
20. Suborder TUBINARES: Petrels. . 2. 2. 1 6. 2 ee ee ee ee OB 
60. Family Procertanipm. Petrels. 1 2. . 2. 2. 6 1 6 eee es 098 
74. Subfamily Diomedeine: Albatrosses . . . . . . + + + + VU4 
75. Subfamily Procellariing: Petrels . 2. 2. 2. 1. 1 we es + 076 
XIII. Order PYGOPODES: Diving Birds .........2.2.2. =. 787 
61. Family Couvmsrpm: Loons . . . . . 1 ee ee ee ee 089 
62. Family Popicrrepipz: Grebes Ld cteggs Hap tee “ile Re” He 792 
63. Family Aucip#: Auks . . . spite, dae oe hy See ed ee EE 
76. Subfamily Phaleridine : Parrot eal) ie — . « « 800 
77. Subfamily Aleixe: Guillemots, Murres, and Auks seopee - . . 810 
PART IV. 
SYSTEMATIC SYNOPSIS OF THE FOSSIL BIRDS OF NORTH AMERICA. 
A. Teromary Brrps . . 2-1 1 ee ee ee ee 822 
B. Cretaczrous Brrps. .. . : ‘ a ee ee eee ee 825 
C.. Jurassic! BIRDS... ai, 4 (ew we ew we wee ww ew 82D) 
END XS oe coy Gas) Gah ae) 8 SP ee wig eR We SP ee ee ee a) eh es La de a ee eee BB 
ARPENDIXG 4. Gg yore gl ON ae ae BO ROR eS ee a es 8 
