GENERAL INDEX S 2 3 



Corpuscles, Pacinian, Herbst, Grandry, etc., 470 

 Coxal glands, 242, 246, 319, 321, 389, 398, 403, 429 

 Cranium, 121, 145, 339 

 Crayfish, 442, 489 

 Crest, neural, 281 

 Cromatophores of frog, 470 

 Crura cerebri, 14 

 Crustacea, first appearance, 27 

 eyes, 76, 87 



,, retina, 100 



,, segmental glands, 422 



Ctenophora, 474 

 Cyathaspis,'29, 326, 340, 343 

 Cyclostomata, 165, 229, 343, 353, 424 

 Cysts, 50 



Daphnia, 112 



Degeneration, 17, 19, 59, 74, 78, 94, 107, 212, 309, 333, 336, 343 



Deiters' nucleus, 489 



Dendrites, 72 



Development, parallel, 497 



„ of two types of eye, 73 



„ vertebrate retina, 101 



Diaphragms, 161, 167 

 Didymaspis, 327, 338 

 Digestion, 441 

 Dinosaurs, 17 

 Dipnoans, 23, 45, 148 

 Diptera, 89, 369 

 Diverticula, optic, 102 

 Dogfish, skull, 121, 123 

 Drepanaspis, 344, 345, 450 

 Drepanopterus Bembycoides, 238 



Ectognath, 238, 242, 271, 304, 342, 381 

 Eel, 488 



Elasmobranchs, 23, 343, 423 

 ' Elastin, 435 

 Embryo, head of dogfish, 121, 123 



skull of pig, 121 

 Embryology, principles of, 455 

 Encepalomeres, 262 

 Endognath, 238, 271, 304, 381 

 Endostoma, 241, 306 

 Endostyle, 198, 212 

 Entapophysis of Limulus, 139 

 Enteroccela, 472 

 Enteropneusta, 438, 494 

 Entochondrites, 377 

 Entosclerite, 222, 271 

 Entosternite, 143 

 Epiblast, 444, 445, 459 



