ILLUSTRATIONS. XV 



No. Page 



24. Apparatus for protruding and withdrawing the Wood- 



pecker's tongue . . .. . , ,89 



25. Head and tongue of the Wryneck (Junes torquil/a) . 93 



26. Head and tongue of the Flamingo (Phwnicoplerus 



ruber) . . . . . . . .96 



27. Teeth of the Ring Paroquet [chick] (Psittacus tongita- 



tus] t and portion of the beak of the Blue Macaw (Ara 

 ararauna) ....... 99 



28. Teeth of the Blue Macaw (Ara ararauna), and portion 



of ditto 100 



29. Upper mandible of the Shoveller (Rhynchaspis clypeata) 101 



30. Palate of the Blue Macaw 104 



31. Head of the Shearwater (Rhyncops nigra) . . . 108 



32. Creeper (Certkiafamiliaris), male and female, and nest 109 



33. Cardiac cavity and gizzard of the. Ostrich . . . 112 



34. Cardiac cavity and gizzard of the Ostrich opened. . 113 



35. Gizzard of a Turkey, opened to show its grinding sur- 



faces 117 



36. Gizzard of a Swan, opened to show its grinding surfaces 128 



37. Cassowary (Casuarias emeu*)*. . . . .130 



38. Stomach of the Emeu, opened to show the gastric glands 131 



39. Cardiac cavity and gizzard of the Nandu . . . 131 



40. The same, opened to show the gastric glands . .131 



41. Buzzard (Buteo vulgaris) 148 



42. Bustard (Otis tarda) 154 



43. Adjutant (Ciconia argala) . . .155 



44. Stomach of the Adjutant opened .... 155 



45. Gizzard of the Solan Goose, opened to show the gastric 



glands 158 



46. Pelican (Pelecanus onocrotatus) . . . .162 



47. Gizzard and cardiac cavity of the Sea Mew opened . 171 



48. Stomach of the Rotch opened 172 



49. Humming-birds extracting the nectar and catching in- 



sects 174 



50. Head of the Roller, showing the vibrissae . . .181 



51. Muscles of the hand, back and front view . . . 191 



52. Nerves of the finger 192 



