INDEX. 



425 



Brach'ial (Gr. /3pa^iov, the arm), 

 belonging to the arm. 



Brach'iopods(Gr. flpaxiov, the arm ; 

 Tro^n, feet), acephalous mollusks, 

 with two long spiral fleshy anus 

 continued from the side of the 

 mouth, xxiii. 



Brachyu'ra (Gr. /3payuc, short, 

 ovpa, tail), Crustacea with short 

 tails, as the crahs. 



Brachyu'rous, short tailed, usually 

 restricted to the Crustacea. 



Brain, 78; in man, 85 88; in fishes, 

 92; in the amphibia, 93 ; in scaly 

 reptiles, 94 ; in birds, 95 ; in 

 mammalia, 96. 



Bran'chia (Gr. /3payxt the gills of 

 a fish), the respiratory organs 

 which extract oxygen from the air 

 contained in water. 



Bran'chifers (Gr. /3pay^trt, gills ; 

 Lat./ero, I bear), univalve mol- 

 lusks breathing by gills, xxiii. 



Bran'chiopods (Gr. /Spay^ia, gills ; 

 TroSa, feet), Crustacea, in which 

 the feet support the gills. 



Bron'chi, tubes branching from the 

 windpipe in the lungs. 



Bron'tes, a genus of the family Tri- 

 lobitidae. 



Bryozo x a (Gr. (Spvov, moss ; c3ov, 

 animal), a class of highly organ- 

 ized polyps, most of the species 

 of which incrust other animals or 

 bodies like moss, xxiii. 664. 



Buc'cal (Lat. bucca, mouth or cheeks), 

 belonging to the mouth. 



and C/E'CA (Lat. ccecus, 



blind), a blind tube, or produc- 

 tions of a tube, which terminate j 

 in closed ends. 



Calcareous (Lat. calx, chalk), com- 

 posed of lime. 



Camel, skeleton of the, 291. 



Campanula' ria, alternate generation 

 of the, 350352. 



Canine' (Lat. canis, a dog) teeth, 341. j 



Canker-worm, metamorphoses of the, 

 552. 



Can'non-bone, the metacarpal bone 



of the horse and stag, 282, 286. 

 Cap'illary vessels (Lat. capillux, a 

 hair), the minute vessels through 

 which the arteries and veins are 

 united, 358, 371. 



Carapace\ the upper shell of the 

 crab and tortoise, 318. 



Car'bon (Lat. carlo], the basis of 

 charcoal and most combustibles. 



Carboniferous, or coal, formation, 650, 



- 669. 



Car'dia (Gr. Kapha, the heart or 

 stomach), the opening which ad- 

 mits the food into the stomach ; 

 also the region called the pit of 

 the stomach. 



Carniv'ora (Lat. caro, flesh ; voro, 

 I devour), animals which feed on 

 flesh, xxi. 



Car'pus (Latin), the wrist, 275. 



Cartilaginous, or gristly, tissue, 42, 

 52. 



Cau'dal (Lat. cauda, a tail), belong- 

 ing to the tail. 



Cau'da Equi v na (Lat. horse-tail}, the 

 leash of nerves which terminates 

 the spinal marrow in the human 

 subject, and the analogous part in 

 the lower animals. 



Cell (Lat. cella), the universal ele- 

 mentary form of every tissue, 56. 



Cellule\ a little cell. 



Cellular tissue (Lat. cella, a cell), 

 the elastic connecting tissue of 

 the different parts of the body 

 which everywhere forms cells or 

 interspaces containing fluid,53,56. 



Cen'tipede (Lat. centum, a hundred; 

 pes, a foot), a genus of insects 

 with very numerous feet. 



Cen'trum (Gr. Ktvrpov, centre), the 

 body or essential elements of a 

 vertebra, around which the other 

 elements are disposed. 



Cephalic (Gr. KtQaXr), head), be- 

 longing to the head. 



Cephal'opods (Gr. KtfiaXr'j, head ; 

 , feet), mollusks in which 



