INDEX 



Numbers in bold-face indicate pages bearing illustrations. 



Aase, 121, 342, 356, 360 



Abderhalden, 100 



Abegg, 99, 100 



Aberrant mitosis, 184—188 



Abies (fir), 95, 235 



Abnormal mitosis, 184, 186 



Abraxas (moth), 380 



Abromavich, 398 



Abulilon (angiosperm), 417 



Acacia (angiosperm), 164 



Acer (maple), 237 



Acetabularia (green alga), 279 



Achlya (fungus), 105, 229 



Achromatic figure, 149-164, 440 



Aconilum (angiosperm), 129 



Acqua, 58 



Acquired somatic modification, 443 



Acrididae (see also Grasshopper), 130, 130 



Acroblast, 78, 204, 216, 219, 220 



Acrosome, 78, 204, 216, 219, 220, 221, 241 



Actinophrys (protozoan), 277, 278 



Actinosphcerium (protozoan), 194, 195, 277 



Activation of egg, 247 



Acton, 192 



Addoms, 188 



Adsorption, 38, 89 



JUgilops (angiosperm), 128, 129, 366 



^gilotricuni (angiosperm), 368 



/Ethalium (slime mold), 26 



Afzelius, 341, 345, 348, 405 



Agar, chromidia, 195 

 chromosome, 116, 142 

 meiosis, 256, 272 

 nucleus, 48 



sex-chromosome, 378, 380 

 syngamy, 239 



Agathis (conifer), 23, 24, 207, 235 



Agave (century plant), 103 



Agglutination, 248 



Aggregata (protozoan), 277 



Aglaozonia (brown alga), 280 



Agropyrum (angiosperm), 128 



Aida, 378 



Akkeringa, 381 



Albach, 53 



Alberti, 187 



Albugo (fungus), 10, 200, 201, 229 



Albumin, 84, 96 



Alchemilla (angiosperm), 402, 404, 405 



Aleurodiscus (fungus), 230, 386 



Aleurone, 96, 98, 101, 103 



Alexander, 144, 312 



Alexieff, 82 



Algae, apomixis, 402 



cell wall, 177 



gametogenesis, 196 



heredity, 306 



meiosis, 278-280 



mitosis, 159, 191 



plastids, 63, 64 



sex, 386 



sporogenesis, 196 



syngamy, 226-228 

 Alkaloids, 96 

 Allelomorph, 289, 310 

 Allen, C. E., cell wall, 176 



chromomeres, 142 



cytokinesis, 171, 174 



heredity in bryophyte, 307 



meiosis, 250, 262, 266, 279, 283 



recombination, 302 



sex determination, 382, 384, 395 



spermatogenesis, 201, 202, 203 

 Allen, R. F., 204, 231, 387 

 Allium (onion), canaliculi, 79 



chondriosomes, 83 



meiosis, 258, 267 



parthenogenesis, 402, 404 



root tip, 5, 79 



somatic chromosomes, 124, 130, 132, 133, 134 



tonoplast, 42 

 AUoheteroploidy, 340, 348, 369 

 Allomyces (fungus), 199, 281 

 AUopIasm, 45 

 Allosynapsis, 362 

 Alnus (angiosperm), 104 

 Aloe (angiosperm), 129, 130, 177, 271 

 Altenburg, 187, 311, 316, 325, 395 

 Alternation of generations, 122, 196, 279-281, 401 

 Altmann, 26, 82, 89, 434 

 Alvarado, 90 

 Alveolar spheres, 32 

 Alveolar theory of protoplasm, 434 

 Alveolation theory of chromosomes, 132, 140 

 Alverdes, 51 



Alyssum (angiosperm), 357 

 Alytes (toad), 272 

 Amblycorypha (katydid), 382 

 Amblystegium (moss), 405 

 Ameiosis, 345 

 Ames, 387 



Amici, 432, 436, 437 

 Amides, 96 



Amitosis, 183-185, 439 

 Amoeba (protozoan), 39, 43, 58, 59 

 Amphiaster, 156 



533 



