XXVI LIST OF ENGRAVINGS. 



Fig. Page 



266 Spiral probosces of Papilio urticcc, (Griffith) . . 87 



267 Trophi of Locusta viridissima, (Goldfuss) ,, . . 92 



268 Filaments composing the rostrum, or proboscis, of the Cimex 



nigricornis, (Savigny) . . . . .94 



269 Sheath of the proboscis of the same insect, (id.) . . 94 



270 Toothed cartilage of tlie f/eZia;_po7n«fra, (Cuvier) . . 95 



271 Mechanism for projecting and retracting the tongue of the 



Woodpecker, (original) .... 99 



272 Laminse of Whalebone descending from the palate of the Ba- 



IcBna mysticetus, (Bonnaterre) .... 102 



273 Teeth of the Delphinus phoccena, (Cloquet) . . 106 



274 Skull of Tiger, (Cuvier) 108 



275 Skull of Antelope, (Pander and D'Alton) . . . 109 



276 Skull of Rat, (id.) . . . . . .110 



277 Longitudinal section of simple tooth, (Rousseau) . Ill 



278 Surface of the grinding tooth of a Horse, (Home) . . Ill 



279 Surface of the grinding tooth of a Sheep, (id.) . . Ill 



280 Lonoitudinal section of the incisor tooth of the Rodentia . Ill 



281 Vertical section of the grinding tooth of the Elephant, (Home) 114 



282 Grinding tooth of the African Elephant, (id.) . . 114 



283 Grinding tooth of the Asiatic Elephant, (id.) . . . 114 



284 Succession of teeth in the Crocodile, (Carus) . . 120 



285 Venomous fang of the Coluber naia, (Smith) . . 121 



286 Transverse section of the same, (id.) . . . 121 



287 The same tooth, at an earlier period of growth, (id.) . . 121 



288 The same, still less advanced in its growth, (id.) . 121 



289 Base of the former, (id.) ..... 121 



290 Base of the latter, (id.) ..... 121 



291 Transverse section of the young fang, about its middle, (id.) 121 



292 A section, similar to the last, of another species of serpent, (id.) 121 



293 Squalus pristus. b. Under side of its snout, (Latham) . 122 



294 Interior of the Stomach of a Lobster, (original) . . 123 



295 Gastric teeth of BuUcea aperta, (Cuvier) . . . 123 



298 Gizzard of the Swan, (Home) .... 124 



299 Crop and gizzard of the Parrot, (id.) v . . . 131 



300 Crop of the Pigeon, (id.) . . . . .131 



301 Human stomach, (id.) ..... 133 



302 Interior of the stomach of the African Ostrich, (id.) . 135 



303 Gastric glands of the same, (id.) .... 135 



304 Gastric glands of the American Ostrich, (id.) . . 135 



305 Longitudinal section of the gastric glands of the Beaver, (id.) 135 



306 Stomach of Dormouse, (id.) ..... 139 



