Abraxas, 153. 



Accessory chromosome, 402-406. 



Acherontia atropos, 36. 



Adaptation, 229-232. 



Adler, 269-271, 358. 



Age, 391. 



Ageniaspis, 410. 



Aglia, 227. 



Albino rabbits, 106-108; rats, 111-113; 



man, 117. 



Allen, 83, 88, 215, 223. 

 Allolobophora, 298. 

 Amblystoma, 315, 316. 

 Amphibians, 246. 

 Amphioxus, 317. 

 Ancon ram, 209. 

 Andalusian fowl, 127. 

 Andrews, 377. 

 Anikin, 41. 

 Annelids, 368. 

 Anodonta, 268. 

 Anolis, 13, 14. 

 Antedon, 177. 

 Antennularia, 266. 

 Antlers, 430. 

 Ants, white, 317-319. 

 Aphids, 207, 219, 273, 311-312, 322, 324- 



334- 



Arctiids, 29. 

 Argynnis, 313. 



Artemia, 18, 40, 41, 336-337. 

 Artom, 337. 

 Aseel, 135 

 Aspergillus, 257. 

 Asplanchna, 350. 

 Asterias, 179. 

 Axolotl, 315, 316. 

 Azora, 412. 



Bacillus, 374. 

 Bacot, 153. 



Balbiani, 320, 324-326, 381. 

 Baldwin, 231. 

 Balfour, 397. 

 Bantam, 130-132. 

 Barb, 135. 

 Barfurth, 255. 



Bateson, 49, 82, 83, 84, 111-113, 121, 

 127, 164, 414. 



Bats, 431. 



Beard, 413, 414. 



Beclard, 264. 



Bee, 269, 320, 351-356, 358. 



Beetles, 151-153. 



Bell, 60, 116, 377-378. 



van Beneden, 397. 



v. Berlepsch, 353. 



Berner, 392. 



Bessels, 377. 



Beyerinck, 272-274. 



Bidder, 392. 



Birds, 248. 



Birth rate, 365. 



Bison, 158. 



Blanc, 262. 



Blending, 156. 



Blochmann, 331-332, 416. 



Blumenbach, 363. 



Boas, 317. 



Bodio, 365. 



Bombyx, 378, 395. 



Bombyx neustria, 29. 



Bonnet, 311, 322. 



Bordet, 178. 



Born, 173, 287, 298, 382. 



Botrytis, 257. 



Boulanger, 392. 



Boveri^ 175, 176, 177, 408-409. 



Branchippus, 40, 41. 



Brauer, 342. 



Braus, 302-304. 



Breslau, 392. 



Briggs, 377. 



Brocadello, 394, 395. 



Brown-Sequard, 52, 53, 54, 55 



Bufo, 173-174, 260, 299. 



Buffon, 213. 



Buller, 178, 179. 



Bumpu, 211. 



Butschinsky, 41. 



Caddis flies, 374. 

 Cagliari, 337. 

 Calkins, 312-313, 320. 

 Callema, 37. 

 Calliphora, 379-380. 

 Callosamia, 301, 440-441. 

 Calotermes, 318. 



449 



