364 



LVD EX OF AUTHORS 



membrane, 38 ; chromosomes, 47 ; amito- 

 sis, 83. 



Walter, frog-experiments, 307. 



\Vasiele\vsky, centrosome, 225. 



Watase, theory of mitosis, 75 ; staining- 

 reactions of germ-nuclei, 127; nucleus and 

 cytoplasm, 21 1 ; asters, 226; theory of 

 centrosome, 228 ; astral rays, 231 ; cleav- 

 age of squid, 273, 283 ; promorphology 

 of ovum, 283, 287. 



Weismann, inheritance, 10, II, 302; cell- 

 organization, 21 ; biophores, 22; ids, 27; 

 somatic and germ cells, 88; amphimixis, 

 130; maturation, 183-185; constitution 

 of the germ-plasm, 183, 305; partheno- 

 genesis, 202; theory of development, 303- 



305. 3 2 8. 



Went, vacuoles, 37. 



Wheeler, amitosis, 8 1 ; insect-egg, 97 ; 

 fertilization in Myzostoma, 157-159; 

 plastids, 170; bilaterality of ovum, 

 283. 



Whitman, on Harvey, 6 ; cell-organization, 

 21 ; idiosome, 22 ; polar rings, 150 ; cell- 

 division and growth, 293 ; theory of de- 

 velopment, 297, 299. 



Wiesner, cell-organization, 21, 137 ; pla- 

 some, 22 ; panmeristic division, 236. 



Wilcox, sperm-centrosome, 123, 124; re- 

 duction, 189, 200. 



Will, chromatin-elimination, 117. 



Wilson, fertilization in sea-urchin, 135, 136, 

 143; paths of germ-nuclei, 152; origin 

 of linin, 223; astral rays, 231; centro- 

 sphere and centrosome, 232-235 ; di- 

 spermy, 260 ; pressure-experiments, 309 ; 

 first cleavage-plane, 277 ; experiments on 

 Amphioxus, 308, 319; theory of develop- 

 ment, 317. 



von Wittich, yolk-nucleus, 118. 



Wolff, C. F., epigenesis, 6. 



Wolff, G., regeneration of lens, 329. 



Wolters, mitosis in gregarines, 67 ; polar 

 body in gregarines, 199. 



Yung, sex, 109. 



Zacharias, E., nucleoli, 24, 25 ; of meristem, 

 27 ; staining-reactions, 127 ; nuclein in 

 growing cells, 246. 



Zacharias, O., amoeboid spermatozoa, 105. 



Ziegler, artificial mitotic figure, 75 ; amito- 

 sis, 83, 84. 



Zimmerman, pigment-cells, 73. 



Zoja, independence of chromosomes, 156, 

 219 ; isolated blastomeres, 309. 



