Xvi ILLUSTRATIONS. 



No. Page 



53. Skull of the Duck, showing the distribution of the fifth 



pair of nerves to the upper mandible and serratures 



on the edge of the lower jaw . . . 196 



54. Ornithorynchus paradoxus (Duck-bill) . 197 



55. Tails of.the wild and domestic Cat . . . . 201 



56. Anthropoides virgo (Demoiselle Heron) , . . 202 



57. Paradisea (Bird of Paradise) 214 



58. Ostrich carrying a Negro ..... 223 



59. Himantopus melanopterus (the Stilt), and Duck. . 225 



60. Feet of Water Birds in the act of making the back 



stroke . . . . . . . . 227 



61. Bird at rest: after Sorelli 228 



62. Anatomy of the leg of a bird at rest : after Borelli . 229 



63. Jacana (Para sine.nsis) walking on the floating leaves of 



the water-lily . . . . . . .230 



64. Swimming-bladders of the Dace and Conger Eel . . 232 



