xvi. THE GANNET 



Young about Twenty -one Months old - - - 483 

 Young about Twenty-eight Months old — 0. G. Pike, 



Phot. . - - 483 



The Secondary Quills — C. B. Ticehurst - - - 487 



A Supposed Variety of the Gannet - - - - 489 



The Foot — drawn by E. Wilson 491 



The Feather Tracts — C. J. G. {after Nitzsch) - - 497 



The Skeleton of a Gannet - - - - - - 500 



The Skull of a Gannet - 503 



The Skull of an Embryo — drawn by H. Gronvold - 504 



The Head and Neck — drawn by E. Wilson - - 505 



The Olfactory Apparatus 507 



The Sternum — after Dresser 508 



The Coracoid — after Shiifeldt 509 



The Pelvis— a//er Shufeklt - - - - - 511 



Spinous Processes of the Ninth Vertebra - - 512 

 A Gannet's Subcutaneous Air-cavities— f/rai^w by 



E. Wilson - 525, 527 



The Cellular Tissue beneath the Skin — drawn by 



E.Wilson - 528 



I'lTS MADE BY RoOTS OF Feathers — drawn by E. Wilson 529 



(Esophagus and Proventriculus — after Macgillivray - 530 



The Tongue - - 535 



The Nictitating Membrane of a Golden Eagle — 



Set on Gordon, Phot. 537 



General Map of Gannets' Distribution - - - 543 



Sula cape7isis — H. E. Harris, Phot. ----- 545 



Sula serrator — A. H. Mattingley, Phot. - - - - 546 



Sida serrator — A. H. Mattingley, Phot. - . . . 546 



Sula piscator — E. Meade- Waldo, Phot. - - - - 551 



Docophorus bassance — after Piaget ----- 553 



Lipeurus pullatus — after Piaget . . . . . 553 



Freyana bassani (Montagu) 555 



