492 



INDEX. 



Arehelnwnthes, ii. 76 

 Archigastrula, i. 198, 241 

 Archilithic epoch, ii. 9, 19 

 Arehipterygiv/m, ii. 301 

 Arohizoio periods, ii. 9, 11 

 Area gertninativa, i. 292 



opaca, i. 296 



pellucida, i, 296 



Arietotle, 1. 27 ; ii. 368 



epigenesis, i. 29 



heart formation, ii. 368 



 his history of eyolution, 

 i. 27 

 Ann, lower, ii. 278, 804 



upper, ii. 278, 304 



ArtericB omphalo-mesenteriecOf i. 895 



vmbilicales, i. 400 



vertehrales, i. 396 



vitelUncB, 1. 395 



Arteries, i. 393 

 Artery-arohes, ii. 377 



stalk, ii. 380 



Arthropoda, ii. 92, 94 

 Articulated animalB, ii. 92, 94 

 Articulation in man, i. 346 

 Ascidia, i. 429 ; ii. 90 



ilastula of, L 455 



chorda of, i. 456 



— — communities of, i. 455 



gastrula of, i. 455 



gill-sac of, i. 431 



heart of, i. 433 



homologies of, i. 465, 466 



intestine of, i. 432 



mantle of, i. 430, 461 



medullary tube of, i. 458 



sexual organs of, L 434 



tail of, i. 456 



AsoulOf ii. 68 

 Atrium, ii. 874, 881 

 Auditory nerve, ii. 262 

 — — — organ, ii. 260 



passage, ii. 269 



vesiclei, ii. 262 



Auricular processes of heart, iL 881 

 Axes of the body, i. 255 ; ii. 77 

 Axial cord, L 301 



rod (notochord), i. SOS 



skeleton, u. 280, 899 



Axis-plate, i. 299 



iL im 



B 



Baeb, Karl Ernst, i. 60 



his germ-layer theory, 1. 61 



his law, i. 58 



' life of, i. 52 



on the bladder.like outline, 



ii. 62 

  on the human egg, L 55 ; ii, 

 424 



on the notochord, i. 65 



on type theory, L 64 



Balanoglo88U8, ii. 85 



Bathybius, ii. 49 



Batrachia, ii. 131 



Bats, ii. 169, 187 



Beaked animals, ii, 147, 187 



Bell-gastrula, i. 198 



Bilateral outline, i. 257 ; ii. 74 



Bimana, ii. 169 



Biogeny, L 24 ; ii. 434 



fundamental law of, i. 6, 



24 ; ii. 434 

 Birds, ii. 120, 138 



gastrula of, i. 223 



Bischoflf, Wilhebn, i. 59 

 Bladder-gaetrula, i. 229, 241 

 Blastcea, ii. 31 

 BlastocoBloma, i. 189 

 Blastoderma, i. 189 

 Blastodiscus, i. 227 

 Blastogeny, i. 24 

 Blastophylla, i. 196 

 Blastophyly, L 24 

 Blastosphcera, i. 191 

 Blastula, i. 191, 242 

 Blind-intestine, ii. 330, 348 

 Blood-cells (corpuscles), i. 169} M. 

 366 

   relationship, i. 112 



vessels, ii. 870 



Bloodless worins, ii. 76 

 Bonnet, i. 40 

 Brain, i. 212, 232 



bladders of, i. 348 f fi. 114 



parts of, ii. 212 



skull of, ii. 29S 



Breast>body, ii. 288 



bone, ii. 282 



 i o»vity, i. 261 



ii. Ml 



