LIST OF ILLUSTRATIONS. 



KO. PAGE 



248. Acarus scabkei, Original, 152 



249. Upper jaws of Spider, do. 153 



250. Under jaws of Spider, do. 153 



251. Nutrimental organs of the Spider, do. 154 



252. Muscular coat, Cynthia pupa, Hunterian Museum, 155 



258. Organs of nutrition, Cynthia pupa, do. 156 



254. Pyrosoma gigantium, do. 157 



255A. Lingula, natural size, Original, 158 



255. Nutrimental organs in situ, Terebratula Australis, . . do. 158 



256. A side view of Terebratula Australis, do. 159 



257. Alimentary canal of Terebratula Australis, front view, . do. 159 



258. Back view of alimentary canal, Terebratula Australis,. . . do. 160 



259. The arms of Terebratula, do. 160 



260. Nutrimental organs, Oyster, do. 161 



261. Hyalaea, do. 162 



262. Nutrimental organs of Hyalaea, - / v do. 162 



263. Eolis Inca, Authors, 163 



264. Nutrimental organs, Aplysia faciata, Original, 163 



265. Tongue, Buccinum undatum, -i^ do. 164 



1 266. Nutrimental organs, Nautilus, Hunterian Museum, 165 



267. Bone of Cuttle-fish magnified, Original, 167 



268. Nutrimental organs, Herring, Hunterian Museum, 168 



269. Palate of Frog, injected, Original, 169 



270. Mucous membrane of stomach of Frog, do. 170 



271. Duodenum of Frog, .V> do. 170 



272. Ileum of Frog, H , . do. 171 



273. Duodenum of Toad, . . . . . . . V *:. ;, do. 171 



274. Large intestine, Frog, .;-. v... do. 171 



275. Stomach of Menobranchus, . . * .--. : ; ^f ''. t . :'. v .-,-. . -.^ do. 172 



276. Ileum of Menobranchus, . . ^ . * . . . . do. 172 



277. Stomach of Menopoma, do. 172 



278. Stomach of Snapping Turtle, .'-.,, . % **'<*; . . do. 172 



279. Alimentary canal of Fowl, Authors, 174 



280. Duodenum of Fowl, injected, Original, 175 



281. Gizzard (external aspect) Crow, . . . . . . f toii\ do. 176 



282. Gizzard cut open, ; . . . do. 176 



283. Stomach of Rat, -. : do. 177 



284. Mucous membrane of stomach of Musk-rat, . . ata**jt do. 178 



285. Stomachs, Herbivorous quadruped, ,- ; > ; ' . . : .' do. 179 



286. Peyerian glands injected, Calf, '#. -^ -,- do. 181 



287. Colon, Calf, injected, . . .*'. . : v .'.;.-: do. 181 



288. Cat's tongue, * '.f . ) . do. 183 



289. Mucous membrane, Cat's stomach, ..=, ...,i :;.-...>.-,*, - .. do. 183 



290. Ileum, Cat, / do. 183 



291. Ileum, Lion, . . . . . ,i',t ;;,'., . . do. 184 



292. Glandulae agmenatae, Lion, . . . . . , .,v ; -^ . do. 184 



293. Solitary glands, colon, Lion, , . . '*++ : ^ \ .* ;'. . .-, ., . -., do. 185 



294. Section of solitary gland, Lion, . . .... do. 185 



295. Colon of the Cat, do. 185 



296. Vessels of the sub-papillary layer, Lion, ....*. do! 185 



297. Filiform papillae, injected, tongue, Dog, ...,_. . do. 186 



298. Circumvallate papillae, tongue, Dog, . ..... do. 186 



299. Mucous membrane, stomach of Dog, .... do. 186 



