INDEX 



Bold-face numbers indicate pages bearing illustrations 



Abies (fir), 295 

 Abraxas (moth), 363 

 Accessory body, 88, 89 



chromosome, 358 ff. 

 Acer (maple), 159, 176, 236, 239, 356 

 Achromatic figure, 66, 145 



in animals, 177 ff. 



in higher plants, 175 ff. 



operation of, 182 ff. 



origin of, 180 

 Achromatin, 64 

 Acids, organic, 135 

 Acquired characters, inheritance of, 399, 



403 



Acrididse, 243 

 Acrosome, 273, 276 

 Actinophrys (protozoan), 282 

 Actinosphcerium (protozoan), 211 

 Activation of egg, 284 ff. 

 Acton, 202, 205 

 Adami, 50, 412 ff. 

 Adiantum (fern), 91, 122 

 Adoxa (angiosperm), 236 

 Adsorption, 37 

 Mthalium (slime mold), 39 

 Agar, ix, 162, 403 

 Agathis (conifer), 295 

 Agave (century plant), 134, 239 

 Age, 136, 137, 138 

 Akinetic division, 143 

 Albugo (fungus), 289, 290 

 Albumen crystals, 135 

 Albumin, 40, 41, 117 

 Alchemilla (angiosperm), 313, 315 

 Aleurone, 134, 135, 333 

 Alexieff, 118 



Alicularia (liverwort), 111 

 Allelomorphic pairs, 338 ff., 378 ff. 

 Allen, C. E., cell plate, 190 



chromomeres, 155, 394 



plastids, 113 



reduction, 222, 236 



sex-determination, 357, 364-365 



spermatogenesis, 88, 89 



Allen, R. F., 91, 313, 314 

 Allium (onion) 



achromatic figure, 182 



eanaliculse, 48 



cell wall, 191 



chondriosomes, 116 



nucleolus, 65 



reduction, 234, 236, 239 



somatic chromosomes, 149, 150 

 Allolobophora (annelid worm), 244, 245 

 Altenburg, 391 



Alternation of generations, 311 

 Altman, 33, 40, 48, 115 

 Alveolar theory of protoplasm, 33 

 Alveolation of chromosomes, 148, 149, 



242 



Alytes (toad), 237, 256 

 Amblystegium (moss), 317 

 Ambystoma (salamander), 160 

 Amici, 6, 13 

 Amides, 135 

 Amitosis, 210 ff. 



and heredity, 212-215 



criticism of evidence, 213-215 

 Amma, 405 



Amoeba (protozoan), 42, 43, 44, 207, 222 

 Amphiaster, 145, 177, 178, 286 

 Amphibia, 239 

 Amphimixis, 403 

 Amphioxus (lancelet), 237 

 Amphitene, 231, 233 

 Amphvuma (amphibian), 150 

 Amygdalus (angiosperm), 134 

 Amylodextrin, 107 

 Amyloplast, 104, 106, 122 

 Amylose, 107 

 Anabaenin, 204 

 Analysis of gametes, 286 

 Anaphase 



heterotypic, 234, 236, 238, 239, 242 



somatic, 144, 145, 147 

 Anasa (bug), 244, 245, 249 

 Anastomoses, 147, 148, 149, 150 

 Ancel, 256 



Ancyracanthus (nematode worm), 359, 

 367 



427 



