XX STRUCTURE AND CLASSIFICATION OF BIRDS 



244. Skull of Emu (after Huxley) ....... 514 



245. Pelvis of Emu (after Mivart) ....... 515 



'24(5. Sternum of Cassowary (after Mivart) ... . 516 



'247. Pelvis of Cassowary (after Mivart) ...... 517 



248. Skull of Ostrich (after Huxley) ...... 518 



249. Sternum of Ostrich (after Mivart) ...... 519 



250. Pelvis of Ostrich (after Mivart) ...... 519 



251. Shoulder Girdle of ^Epyornis (after Andrews) . ... 523 



252. Diagram of Eelationsliips of Strutkiones (after T. J. Parker) 527 



