444 



INDEX 



. 



* Arthropoda, 327 

 Ascaris lumbricoides, 326, 340 

 Ascogonium, 175 

 Ascus, 176 



Asexual reproduction, 169 

 Asphyxia, 54 



Atrophic changes of age, 432 

 Auricles of heart, formation of, 



140 



Autogenetic cells, 247 

 Automatic action, 155 

 Automatism, 155 

 Axolotl, 191 

 Azygospores, 181 



B 



BACILLUS, colon, 320 



of tetanus, 319 

 toxic product of, 352 



of tuberculosis, 320 

 Bacteria, aerobic, 52 



and infection, 350 



and oxygen, 52 



and phagocytes, 372 



avenues of entrance, 352 



discovery of, 23 



effect of temperature on, 38 



life of, 352 



light and, 55 



mutualism of, 316 



nitrogen-fixing, 316 



number of, 352 



sisotropic reactions of, 49 

 Balantidium coli, 324 

 Barry, 202 



Bastard toadflax, 323 

 Bateson on sex determination, 



235 



Beck, 87 

 Bed-bugs, 318 

 Bilharzia, 325 



Binomial nomenclature, 298 t 



Bioblasts, 96 



Biogenetic law, 222 is' 



Biogenic infusions, 25 



Biophors of Weismann, 248 



Bitter root fever, 336 



Blastocele, 209 



Blastoderm, 209 



Blastodermic vesicle, 215 



Blastogenic idioplasm, 251 



Blastomeres, 208 



Blastophore, 210 



Blastula, 185, 209 



Blood, development of, 135 



relationship, 305 

 Blood-cells, 95 



Blood-vessels, regeneration of, 

 404 



replacement of, 418 



suture of, 406 

 Blumenbach, 228 

 Bones, atrophic changes in, 434 



regeneration of, 399 

 Bonnet on regeneration, 392 

 Bordet on blood, 306 

 Born on grafting in tadpoles, 



421 



Botfly, 330 

 Boveri, 197 



Box-within-box doctrine, 201 

 Brain, development of, 151 

 Branchiae, 145 

 Breeds of domestic animals, 



Darwin on, 278 

 Brooks' theory of inheritance, 



245 



Budding, 169 

 Buffon on evolution, 271 

 Bugs, 328 

 Burrows on growth of tissue in 



vitrio, 312 

 Butschli, 95 



