242 



INDEX AND GLOSSARY. 



Balanus, the barnacle, 176. 

 Basilosaurus, 234. 

 Batrachians, the frog tribe, 20. 

 Beak, 104. 



Belemnites, 230, 233. 

 Bird-tracks, in red sandstone, 229. 

 Birds, number of, 27. 

 Bivalve, having two shells, like the 



clam, 27- 

 Blastoderm, the embryonic germ, 



141. 



Blind-fishes, 55. 

 Blood, 111, 121. 

 Boulders, 236. 

 Brachionus, jaws of, 103. 

 Brachiopods, a class of mollusks, 



22. 



Brain, 45. 



Branchiae, gills, 120. 

 Branchifers, univalve mollusks 



breathing by gills, 22. 

 Bronchi, tubes branching from the 



windpipe in the lungs, 119. 

 Brontes, 225. 

 Bryozoa, 23, 225. 

 Bucania expansa, 224. 



Calcareous, composed of lime, 75, 



134. 

 Campanularia, reproduction of, 165, 



170. 



Canine teeth, 106. 

 Caninia flexuosa, 224. 

 Canker-worm, metamorphoses of, 



176. 



Cannon-bone, 86. 

 Canter, 91. 



Capillary vessels, 113. 

 Carapace, the upper covering of the 



crab or tortoise, 75. 

 Carbon, the basis of charcoal and 



most combustibles, 41. 

 Carboniferous rocks, 218, 228. 

 Cariocrinus ornatus, 224. 

 Carnivora, animals feeding on flesh, 



20 ; teeth of, 107. 

 Carpus, the wrist, 83. 

 Cartilage, gristle, 39. 

 Cartilaginous tissue, 38. 

 Cell, 37 ; nucleated, 38. 

 Cellule, a little cell, 37. 

 Cephalopods, mollusks with arms 



surrounding the head, like the 



cuttle-fish, 22. 



Cercaria, reproduction of, 160, 171. 

 Cerebral, pertaining to the brain, 45. 

 Cestracion Philippi, 204. 



Cetaceans, marine animals which 

 nurse their young, like the whale, 

 porpoise, &c., 20. 



Chsetetes lycoperdon, 224. 



Chalaza, the albuminous thread by 

 which the yolk of the egg is sus- 

 pended, 138. 



Chalk formation, 218. 



Chambers of the eye, 50. 



Chamois, 192. 



Cheirotherium, 229. 



Chelonians, reptiles of the tortoise 

 tribe, 20. 



Chorion, 151. 



Choroid, coat of the eye, 49. 



Chrysalis, the insect in its passage 

 fr-om the worm to the fly state, 

 174. 



Chyle, 100, 112. 



Chyme, 100, 112. 



Cicatricula, 141. 



Cilia, microscoj 

 lashes, 81, 11 



ic hairs, like 

 , 116, 120. 



eye- 



Circulation, 97; great, 111; pulmo- 

 nary or lesser, 116 ; complete, 

 116 ; incomplete, 116. 



Cirrhipedes, Crustacea having curled 

 feelers, like the barnacles, 27. 



Class, 18. 



Clavicle, the collar-bone, 83. 



Climate, influence on a fauna, 188. 



Climbing, 92. 



Cocc6steus, 226. 



Cochlea, 58. 



Cold-blooded animals, 122. 



Coleopterous, insects with hard 

 wing cases, like the dor-bug, 27. 



Collar-bone, 83. 



Columnaria alveolata, 224. 



Comatula, metamorphosis of, 179, 

 180. 



Condor, 191. 



Constancy of species, 67. 



Coral-rag, 231. 



Cornea, the transparent portion of 

 the eyef 49. 



Corpuscles, minute bodies, 39. 



Cossus ligniperda, muscles of, 77- 



Cretaceous, or chalk formation, 218. 



Cricoid, ring-like, 65. 



Crinoid, lily-like star-fishes, 23. 



Crioceras, 232. 



Crustacea, articulated animals hav- 

 ing a crust-like covering, like the 

 crab and horse-shoe, 27 ; heart 

 of, 117. 



Crystalline lens, 49. 



