INDEX 



Proper names and titles of sections are in small capitals; 

 page references to illustrations in italic numerals. 



Aborigines of Australia 402 



New Zealand 402 



North America 402 



Pacific Islands 402 



South America 402 



Tasmania 401 



West Indies 402 

 "Accessory" chromosome, 140, 



141, 143, 144, 145, 166, 167, 



271-277 



Achondroplasy, 200, 293, 294 

 Achromatin, 109, 113 



differential distribution, 



184, in cell body, 181 

 ACQUIRED CHARACTERS, INHERI- 

 TANCE OF, 334-351 



Darwin on, 335 



Lamarck on, 334 



Weismann on, 335 



definition of, 336, 337 



general objections to, 338 



specific objections to, 339- 



347 



Adaptive responses, 55, 78 

 Adrenal gland, fed to tadpoles, 



326 

 African negro, 402, 407 



in Jamaica, 417 



in U. S., 417 

 Age of human race, 398 

 Albinism, 289, 291, 292 

 Alcoholism, 206, 295, 450 



cause of sterility, still- 

 births, malformation, 

 dwarfs, 311, 312, 313 



induction effect on rotifers, 

 349 



influence on germ cells, 311 



Alkaptonuria, 293 

 Alpine plants, non inheritance 

 of acquired characters, 345 

 "Alternative" inheritance, 208 

 Alternatives in development, 



462, 463 

 Amalgamation of races, 402, 



416-419 



American men of science, fami- 

 lies of, 4?5 



AMPHIOXUS, cleavage and differ- 

 entiation, 119 

 cleavage and gastrulation, 



25, larvae, 27, 29 

 isolated cleavage cells, 314, 



S15 



Ancestors, number of, 216-218 

 Ancestry, pride of, 429 

 ANCYRACANTHUS, oogenesis, 134, 



spermatogenesis, 132 

 Andalusian fowl, Blue, 266 

 Anencephaly, 325 

 Animal pole of egg, 167 

 Annelid type of egg, 178 

 Ants and bees, 440, 483 

 Artificial limitation of fami- 

 lies, 437, 438 



Artificial parthenogenesis, 314 

 ARTIFICIAL SELECTION, 376 



chief factor in production 



of domestic races, 376 

 creates nothing, 377-380 

 isolates pure lines, 378, 379 

 lacking, 409, 411, 412 

 methods of, 376, 377 

 results of, 377-380 

 ASCARIS, fertilization of, 112 



515 



