XXXll LIST OF ENGRAVINGS. 



Fig. Page 



370 Stigmata in the abdominal surface of the Dijtiscus mar- 



ginalis, (Leon Dufour) "28 1 



371 Stigmata of Cerawi?/a; /teros, (Fab.) magnified, (id.) .. 281 



372 Longitudinal tracheae of Cara^MS awra^MS, (id.) 281 



373 Air vesicles and tracheae of the Scolia hortoruni, (Fab.) 



highly magnified, (id.) 281 



374 Respiratory apparatus of the Scorpio europceics, (Trevi- 



ranus) 284 



375 Internal structure of the lungs of the Turtle, (Bojanus). . 290 



377 Air cells of the Oa'^WcA, (Parisian Academicians) o 295 



378 Lymphatic Absorbents 317 



379 Passage of Nerves through a ganglion 324 



380 Plexus of nerves 324 



381 Varietiesof forms of antennae of Insects, (Goldfuss) .... 345 



382 Vertical and longitudinal section of the right nostril in 



man 357 



383 Vertical transverse section of the same 358 



384 Transverse section of the nostril of a Sheep, (Harwood) . . 359 



385 Turbinated bones of the Seal, (id.) 359 



386 Turbinated bones of the Turkey, (id.) 362 



387 Nerves distributed to the bill of the Duck, (id.) 362 



388 Nasal cavities of the Percajiuviatilis, (Cuvier) 367 



389 Nasal cavity of the Raia bads or Skate, (Harwood) .... 367 



390 Human ear, (Cloquet) 376 



391 Posterior surface of the cavity of the tympanum, (id.) . . 380 



392 Ossicula auditus, or small bones of the tympanum 380 



393 The position of the latter in the tympanum 380 



394 Magnified view^ of the labyrinth detached from the sur- 



rounding parts, (Breschet) 381 



395 Interior structure of the labyrinth, (id.) 382 



396 Membranous labyrinth, with its nerves, (id.) 382 



397 Cretaceous bodies in the labyrinth of the Dog, (id.) .... 382 



398 Ditto in that of the Hare, (id.) 382 



399 Organ of hearing in the Lobster, (Carus) 390 



400 Groove in the sac of the former, (id.) 390 



401 Organ of hearing in the Astaciis Jluviatilis, (id.) 390 



402 Interior view of the same, (id.) 390 



403 Membranous labyrinth of the Lophius piscatorius, (id). . 392 



404 Organ of hearing in the Frog, (Bell) 394 



405 Eur of the Turkey, (Carus) 394 



