-INDEX 



593 



Mussel, 392 ; Lancelet, 408 ; 

 Dogfish, 433-442 ; Rabbit, 503 < 



Body-cavity, see Ccelome 



Body of vertebra, see Vertebra 



Body-segments, see Metamere 



BojanuSj organ of, 390 



Bone: cartilage and membrane, 43, 

 472 ; nature of, 52 ; microscopi- 

 cal structure of, 116 



Bones, see Endoskeleton, Skull, 

 Vertebra, Ribs, Sternum.' and 

 under individual bones of limbs 



Botany, i 



BOUGAINVILLEA : occurrence and 

 general charactets, 304 ; micro- 

 scopic structure, 304 ; structure 

 of Medusa, 307 ; nervous system, 

 311 ; organs of sight, 308, 312 ; 

 reproduction and development, 

 312; alternation of generations, 

 314 ; practical directions, j/7 



Brachial plexus, see Nerve-plexus 



Brain : Frog, 28, 156, 202 ; Earth- 

 worm, 333 ; Crayfish, 365 ; Mus- 

 sel, 392 ; Lancelet, 405, 408 ; 

 Dogfish, 443 ; Rabbit, 501 ; de- 

 velopment of, in Vertebrates, 202, 

 566, 587 



Brain-case, see Skull 



Branchia, see Gill 



Branchial apertures, arches, clefts, 

 and septa : Tadpole, 204, 206 ; 

 Lancelet, 405, 407 ; Dogfish, 416, 

 422, 429, 432 ; development of, 



571 

 Branchial rays, 422 

 Branchial vessels : Crayfish, 360, 



363 ; Mussel, 392 : Lancelet, 409 ; 



Dogfish, 433 ; Tadpole, 435 

 Breast-bone, see Sternum 

 Bronchus, 500 

 Buccal cavity,' 16, 327, 429 

 Buccal groove, 262 

 Bud, budding, 301, 303, 313 

 Bufo, Bufonidje, 218 

 Bulb, see Medulla oblongata 

 Bulbus aorta;, 89 

 Bulla, tympanic, 475 

 Byssus, 396 



Pract. Zool. 



c. 



,,3ecum, 498 



Calcaneum, 51, 487 



Calcar, 52 



Canal : central, of spinal cord, 156, 

 408, 443 ; naso-palatine, 490 ; 

 neural, see Vertebral column ; 

 neurenteric, 203 ; radial and circu- 

 lar of Medusa, 307 ; semicircular of 

 ear, see Auditory organ and Mem- 

 branous labyrinth ; sensory, of 

 Dogfish, 416, 448 ; sternal, of 

 Crayfish, 349 ; vertebrarterial,48i 



Canaliculi, see Bone 



Canine -teeth, 492 



Capillaries, 95, 363, 435, 438 



Capitular facet and capitulum, 481 



483 

 Carapace, 347 

 Carbohydrates, 72 

 Carbon dioxide, 66 

 Carchesium, 281, 28S 

 Cardiac division, see Stomach. 

 Carotid arch, see Arteries of Frog, 



Dogfish, and Rabbit 

 Carpus, 50, 485 

 Cartilage, 20, 35, 115, 419, 470; 



calcified, 46, 48, 419 

 Caruncle, 582 



Castings of earthworm, 318 

 Cell, no, 231, 540; see under 



various types 

 Cell-colony, see Colony 

 Cell-differentiation, see Differentia- 

 tion, and under development of 



various types 

 Cell-division, 544, jcifj 

 Cell-membrane or wall, 232, 244, 



542 

 Cellulose, 244, 254, 406 

 Cement, 429, 493 

 Centrosome, 544 

 Centrum, see Vertebra 

 Cephalothorax, 347 

 Cerebellum: L'rog, 157; Dogfish, 



443> 513 

 Cerebral flexure, 568 

 Cerebral ganglion, see Brain 



