xvi LIST OF ILLUSTRATIONS 



. PAGE 



1035. Structure of feather 370 



1036. Development of feather 371 



1037. Columba livia, pterylosis . 372 



1038. bones of trunk 374 



1039. ,, cervical vertebra . 374 



1040. ,, sacrum of nestling . 375 



1041. ,, ,, skull of young specimen 376 



1042. Diagram of Bird's skull 377 



1043. Columba livia, hyoid apparatus 378 



1044. ,, ,, columella auris 378 



1045. ,, ,, bones of left wing ....... 379 



1046. manus of nestling . . . . . . . 380 



1047. ,, innominate of nestling 380 



1048. ,, bones of hind-limb . 381 



1049. ,, ,, foot of embryo 381 



1050. ,, ,, muscles of wing 383 



1051. ,, dissection from right side 384 



1052. ,, ,, lungs and trachea 386 



1053. Diagram of air-sacs of a Bird 387 



1054. Columba livia, heart 389 



1055. ,, vascular system 390 



1056. brain 391 



1057. ,, ,, dissections of brain 392 



1058. eye 393 



1059. ,, ,, auditory organ 394 



1060. ,, ,, urinogenital organs, male 395 



1061. female ... .395 



1062. Apteryx australis 398 



1063. skeleton ... 399 



1064. Hesperornis regalis 400 



1065. Ichthyornis victor 401 



1066. Eudyptes antipodum 402 



1067. Archseopteryx lithographica 406 



1068. skull . . .... 407 



1069. ,, ,, manus 407 



1070. Opisthocomus and Apteryx, wings 408 



1071. Gypaetus and Ardea, pterylosis 410 



1072. Casuarius, feather 411 



1073. Gallus, Turdus, Vultur, Procellaria, and Casuarius, sterna . . 412 



1074. Eudyptes pachyrhynchus, skeleton 413 



1075. Apteryx mantelli, skull of young specimen, side view . . . 414 



1076. ,, ,, ,, ,, ,, dorsal view . . 415 



1077. Anas boschas, skull .... 416 



1078. Ara, skull ... . 416 



1079. Apteryx mantelli, shoulder-girdle 417 



1080. Dinornis robustus, skeleton ......... 418 



1081. Sterna wilsoni, fore-limb of embryo 419 



1082. Apteryx australis, left innominate . . . . . .419 



