viii LIST OF ILLUSTRATIONS. 



PAGE 



34. Skulls of Fowls, viewed from above, a little obliquely 262 



35. Longitudinal sections of Skulls of Fowls, viewed laterally . . 263 



36. Skull of Horned Fowl, viewed from above, a little obliquely . . 265 



37. Sixth Cervical Vertebra of Fowls, viewed laterally 267 



38. Extremity of the Furcula of Fowls, viewed laterally 268 



39. Skulls of Ducks, viewed laterally, reduced to two-thirds of the 



natural size 282 



40. Cervical Vertebrae of Ducks, of natural size • 283 



41. Pods of the Common Pea 328 



42. Peach and Almond Stones, of natural size, viewed edgeways .. 337 



43. Plum Stones, of natural size, viewed laterally 345 



