360 



INDEX OF AUTHORS 



140, 259; reduction, 173; maturation in 

 Ascaris, 179, 187; tetrads, 221; centriole, 

 227, 235; attraction-sphere, 233; egg- 

 fragments, 258; position of polar bodies, 

 280. 



Brandt, symbiosis, 37; regeneration in Pro- 

 tozoa, 248. 



Brauer, bivalent chromosomes, 6i; mitosis 

 in rhizopod, 65; fission of chromatin- 

 granules, 78; deutoplasm, 117; fertiliza- 

 tion in Branchipus, 142; parthenogenesis 

 in Artemia, 156, 202-205; spermatogene- 

 sis in Ascaris, 184, 187; tetrads, 222; 

 intra-nuclear centrosome, 225. 



Braus, mitosis, 74. 



Brogniard, pollen-tube, 162. 



Brooks, heredity, 10. 



Brown, Robert, cell-nucleus, 13; pollen- 

 tube, 162. 



Briicke, cell-organization, 21, 210, 237, 249. 



von Brunn, spermatozoon, IO2, 105. 



Buffon, organization, 21. 



Bunting, germ-cells, 109. 



Burger, centrosome, 228. 



Biitschli, 5; protoplasm, 17-19; diffused 

 nuclei, 23; artefacts, 31; asters, 34, 230; 

 cell-membrane, 38; mitosis, 46, 53, 75; 

 centrosome in diatoms, 65, 224; rejuve- 

 nescence, 129; cyclical division, 163; 

 polar bodies, 175; nature of centrosome, 

 228. 



Calberla, micropyle, 148. 



Calkins, mitosis in Noctiluca, 65, 67; yolk- 

 nucleus, 117-121; origin of middle-piece, 

 123, 125; reduction, 200. 



Campbell, fertilization in plants, 1 60. 



Carnoy, muscle-fibre, 34; mitosis, 75; ami- 

 tosis, 81-83; germ-nuclei, 134. 



Castle, egg-axis, 279 ; bilateral cleavage, 281. 



Chittenden, organic synthesis, 247. 



Chmielewski, reduction in Spirogyra, 199. 



Chun, amitosis, 83; partial development of 

 ctenophores, 315. 



Clapp, first cleavage-plane, 282. 



Clarke, mitosis in gregarines, 67. 



Cohn, cell, 13. 



Conklin, size of nuclei, 52; union of germ- 

 nuclei, 153; centrosome in fertilization, 

 157, 158; unequal division, 275; cell-size 

 and body-size, 289. 



Corda, pollen-tube, 162. 



Crampton, reversal of cleavage, 270; experi- 

 ments on snail, 315. 



Darwin, evolution, 2,4; inheritance, 7, 295; 



variation, 9; pangenesis, 10, 303; gem- 

 mules, 21, 22. 



Dogiel, amitosis, 84. 



Driesch, dispermy, 147; fertilization of egg- 

 fragments, 148; pressure-experiments, 275, 

 282,309; isolated blastomeres, 308; theory 

 of development, 312, 317, 328; experi- 

 ments on ctenophores, 315; ferment- 

 theory, 327. 



Driiner, spindle-fibres, 35; central spindle, 

 74, 76; aster, 234. 



Diising, sex, 109. 



von Ebner, Sertoli-cells, 208. 



Eismond, structure of aster, 34. 



Elssberg, plastidules, 22. 



Endres, experiments on frog's egg, 307. 



Engelmann, inotagmata, 22; ciliated cells, 



30, 31, 34; rejuvenescence, 129. 

 von Erlanger, asters, 34; elimination of 



chromatin, 117, 121; fertilization, 157; 



centrosome, 228. 

 Eycleshymer, first cleavage-plane, 282. 



Farmer, reduction in plants, 196, 197. 



Fick, fertilization of axolotl, 135, 142. 



Field, formation of spermatozoon, 123-125: 

 staining-reactions, 127. 



Fischer, artefacts, 31, 213. 



Flemming, protoplasm, 19, 31; chromatin, 

 24; cell-bridges, 42; cell-division, 46; 

 splitting of chromosomes, 51; mitotic fig- 

 ure, 53; heterotypical mitosis, 60 ; leuco- 

 cytes, 72; theory of mitosis, 74; division 

 of chromatin, 78; amitosis, 80-84, 2O 9; 

 axial filament, 123; middle-piece, 125, 126; 

 rotation of sperm-head, 137; spermato- 

 genesis, 193, 194; astral rays, 231; ger- 

 minal localization, 298. 



Floderus, follicle-cells, 113. 



Fol, I, 5, 46; amphiaster, 49, 53; theory of 

 mitosis, 70; sperm-centrosome, 125; fer- 

 tilization in echinoderms, 130, 157; poly- 

 spermy, 140; attraction-cone, 146; vitel- 

 line membrane, 148; asters, 230. 



Foot, yolk-nucleus and polar rings, 119, 121, 

 150; archoplasm, 121 ; fertilization in 

 earthworm, 136, 143; entrance-cone, 149. 



Foster, cell-organization, somacules, 22. 



Frommann, protoplasm, 19; nucleus and 

 cytoplasm, 214. 



Galeotti, pathological mitoses, 67-69. 

 Gallon, inheritance, 7. 

 Gardiner, cell-bridges, 42. 

 Carnault, fertilization in Arion. 155. 



