LIST OF ENGRAVINGS. XXXV 



Fig. Page 



427 Portion of the section of the eye of the Libellula, 



(Duges) 488 



428 Portion of the section of the eye of the Melolontha 



vulgaris, (Straus Durckheim) 488 



430 Interior of the eye of the Percafluviatilis, (Cuvier). . 488 



431 Fibres of the crystalline lens of the Cod, (Brewster) . . 496 



432 Denticulated structure of these fibres, (id.) 496 



433 Section of the eye of the Goose, (Home) 501 



434 Nictitating membrane of a Bird, (Petit) 501 



435 Muscles of the nictitating membrane, (id.) 501 



438 Talitrus, (Latreille) 542 



439 Nervous system of the Talitrus, (Audouin) 543 



440 Nervous system of Cymothoa, Fab. (id.) 543 



441 Nervous system of Maia squinado, (id.) 545 



442 Nervous system of the Larva of the Sphinx liyustri, 



(Newport) 547 



443 Ditto of the Chrysalis of the same, (id.) 547 



444 Ditto of the Imago of the same, (id.) 547 



445 Nervous system of the Asterias, (Tiedemann) 550 



446 Ditto of the Aplysia, (Cuvier) 550 



447 of the Patella, (id.) 550 



448 of the Sepia Octopus, (id.) 550 



449 Brain and spinal marrow of the Columba turtur, (id.) 552 



450 Transverse section of the spinal marrow of the Cypri- 



nus carpio 552 



451 Brain and spinal marrow of the Trigla lyra, (Arsaky) 552 



452 Brain of the Murcena conger, (Serres) 552 



453 Percafluviatilis, (Cuvier) 552 



454 Testudo my das, (Carus) 552 



455 - - Crocodile, (id.) 552 



456 Lion, (Serres) 552 



457 Lateral view of the brain of the Perch, (Cuvier) .... 552 



458 - of the Testudo mydas, (Carus) 552 



459 of a section of the brain of the Dove, (id.) . . 552 



460 - - of the Lion 552 



461 Vertical section of the human brain, (Monro) 560 



462 Progressive changes in the Monas 584 



463 Vorticella . ... 584 



