210 



INDEX AND GLOSSARY. 



Baculites, 200. 



Balanus, the barnacle, 144. 



Basilosaurus, 202. 



BatrachianSj the frog tribe, xvi. 



Beak, 79. 



Belemnites, 199, 201. 



Bird-tracks, in red sandstone, 197. 



Birds, number of, 3. 



Bivalve, having two shells, like the 



clam, 3. 

 Blastoderm, the embryonic germ, 



111. 



Blind-fishes, 31. 

 Blood, 86. 

 Boulders, 204. 

 Brachiopods, a class of mollusks, 



xviii. 

 Brain, 21. 

 Branchiae, gills, 94. 

 Branchifers, univalve mollusks 



breathing by gills, xviii. 

 Bronchi, tubes brandling from the 



windpipe in the lungs, 93. 

 Brontes, 193. 

 Bryozoa, xviii. 193. 

 Bucania expansa, 192. 



Calcareous, composed of lime, 51, 



107. 

 Campanularia, reproduction of, 134, 



139. 



Canine teeth, 81. 

 Caninia flexuosa, 192. 

 Canker-worm, metamorphoses of, 



144. 



Cannon-bone, 60. 

 Capillary vessels, 88. 

 Carapace, the upper covering of the 



crab or tortoise, 51. 

 Carbon, the basis of charcoal and 



most combustibles, 17. 

 Carboniferous rocks, 186, 196. 

 Cariocrinus ornatus, 192. 

 Carnivora, animals feeding on flesh, 



xvi. ; teeth of, 82. 

 Carpus, the wrist, 59. 

 Cartilage, gristle, 15. 

 Cartilaginous tissue, 14. 

 Cell, 13 ; nucleated, 14. 

 Cephalopods, mollusks with arms 



surrounding the head, like the 



cuttle-fish, xvii. 



Cercaria, reproduction of, 129, 138. 

 Cerebral, pertaining to the brain, 21. 

 Cestracion Philippi, 171. 

 Cetaceans, marine animals which 



nurse their young, like the whale, 



porpoise, &c. xvi. 



Chaetetes lycoperdon, 102. 



Chalaza, the albuminous thread by 

 which the yolk of the egg is sus- 

 pended, 109. 



Chambers of the eye, 26. 



Cheirotherium, 197. 



Chelonians, reptiles of the tortoise 

 tribe, xvi. 



Chorion, 120. 



Choroid, coat of the eye, 25. 



Chrysalis, the insect in its passage 

 from the worm to the fly state, 

 143. 



Chyle, 74. 



Chyme, 75. 



Cilia, microscopic hairs, like eye- 

 lashes, 57, 84, 87, 94. 



Circulation, 86 ; great, 90 ; pulmo- 

 nary or lesser, 90 ; complete, 90 ; 

 incomplete, 91. 



Cirrhipedes, Crustacea having curled 

 feelers, like the barnacles, fig. 145. 



Clavicle, the collar-bone, 59. 



Climbing, 68. 



Coccosteus, 194. 



Cold-blooded animals, 96. 



Coleopterous, insects with hard 

 wing cases, like the dor-bug, 3. 



Collar-bone, 59. 



Columnaria alveolata, 102. 



Comatula, metamorphosis of, 147, 

 148. 



Constancy of species, 43. 



Cornea, the transparent portion of 

 the eye, 25. 



Corpuscles, minute bodies, 15. 



Cossus ligniperda, muscles of, 53. 



Cretaceous, or chalk formation, 186. 



Cricoid, ring-like, 41. 



Crinoid, lily-like star-fishes, xviii. 



Crioceras, 200. 



Crustacea, articulated animals hav- 

 ing a crust-like covering, like the 

 crab and horse-shoe ; heart of, 91. 



Crypts, little recesses or sacs, 100. 



Crystalline lens, 25. 



Ctenoids, fishes which have the 

 edge of the scales toothed, xvi. 



Ctenophori, soft, radiated animals, 

 moving by cilia, xix. 



Cuttle-fish, jaws of, 78 ; heart of, 91 ; 

 metamorphosis of, 148 ; mode of 

 swimming, 71. 



Cyathocrinus ornatissimus, 192. 



Cyathophyllum quadrigeminum, 192. 



Cycloids, fishes with smooth scales, 

 xvi. 



