CONTENTS, 



Those marked thus, * not being recognized as British Birds, are not figured. 



A lea impennis 

 A lea torda 

 * A nous stolidus 

 Arctic Tern - 



*Black-Eyebrowed Albatros 



Black Guillemot 



Black-Headed Gull 



Black Tern 



Black-Throated Diver - 



Bonaparte's Gull - 



Briiuuich's Guillemot 



Buffon's Skua 

 % Bulweria colwnbinia 

 *Bulwer's Petrel 



*Capped Petrel 



Caspian Tern 

 *Collared Petrel 

 *Colymbus adamsi 



Colymbus arcticus - 



Colymbus glacialis 



Colymbus septentrionalis 



Common Gull 



Common Tern 



*Diotneded melanophrys - 

 *Dusky Shearwater 



Eared Grebe 



Fork-Tailed Petrel 

 Fratercula arctica- 

 *Frigate Petrel 

 Fulmar 

 Fulmarus glaeialis 



18 



95 

 236 

 132 



90 



75 

 181 

 164 

 226 

 112 

 138 



18 



80 



15 



13 



8 



23 



99 

 108 



102 



80 



242 



76 



85 

 95 

 75 

 99 

 90 



73 

 65 

 63 

 6S 



