LIST OF ENGRAVINGS. XXIX 



Pig. Page 



264 The same seen from the under side, showing the digestive 



organs, (id.) 93 



295 Diagram showing the arrangement and connexions of the 

 organs of the vital functions in the Vertebrata, (ori- 

 ginal) 95 



266 Spiral probosces of Papilio urticce, (Griffith) 102 



267 Trophi of Locus ta viridissima, (Goldfuss) 109 



268 Filaments composing the rostrum, or proboscis, of the 



Cimex nigricornis, (Savigny) Ill 



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



270 Toothed cartilage of the Helix pomatia, (Cuvier) 113 



27 1 Mechanism for projecting and retracting the tongue of the 



Woodpecker, (original) 119 



272 Laminae of Whalebone descending from the palate of the 



Balcena mysticetus, (Bonnaterre) 123 



273 Teeth of the Delphinus phocoena, (Cloquet) 127 



274 Skull of Tiger, (Cuvier) 130 



275 Skull of Antelope, (Pander and D'Alton) 131 



276 Skull of Rat, (id.) 132 



277 Longitudinal section of simple tooth, (Rosseau) 134 



278 Surface of a grinding tooth of a Horse, (Home) 134 



279 Surface of the grinding tooth of a Sheep, (id.) 134 



280 Longitudinal section of the incisor tooth of the Rodentia . . 1 34 



281 Vertical section of the grinding tooth of the Elephant, 



(Home) 138 



282 Grinding tooth of the African Elephant, (id.) 138 



283 Grinding tooth of the Asiatic Elephant, (id.) 138 



284 Succession of teeth in the Crocodile, (Carus) 146 



285 Venomous fang of the Coluber naia, (Smith) 148 



286 Transverse section of the same, (id.) 148 



287 The same tooth at an earlier period of growth, (id.) 148 



288 The same, still less advanced in its growth, (id.) 148 



289 Base of the former, (id.) '. 148 



290 Base of the latter, (id.) 148 



291 Transverse section of the young fang, about its middle, (id.) 148 



292 A section, similar to the last, of another species of serpent, 



(id.) 148 



293 Squalus pristis. b. Under side of its snout, (Latham). . 149 



294 Interior of the Stomach of a Lobster, (original) 150 



295 Gastric teeth of Bullcea aperta, (Cuvier) 1 50 



