66 



As each group of cliromosojaes approaches the pole of 

 the spindle, the individual c lor o mo somes unite to form a 

 densely staining spherical mass, v/Iiich becomes the nucleolvs 

 of the daugjiter nucleus. V/hen the original iaciear meia- 

 "brane persists, tlie organization of the daugjiter nuclei is 

 complete on the separation of the tv;o halves of the nu- 

 cleus, by which time no trtice of the spindle is seen. 'Vnien. 

 as is more usual, tiie nuclear membrane disappears tov;ard . 

 telophase, the mass of chromatin in the i'.imediate vicinity 

 of the kinopla,smic cap becomes surrounded by a new nuclear 

 membrane, around v/hich the kinoplasm becomes distributed. 



In s^ny event, tv.o daughter nuclei are formed, .jhich 

 lie at some distance from each other. Each is somev/hat 

 elongated, v/ith a large, spherical, uniformly staining nu- 

 cleolus in tlie centre, and frequently v/ith t,o or three 

 s:iia-ller bodies of cliroinatin in the nuclear cavity (fig. 13oV 

 The da.ughter nuclei are considera-bly sm£,ller tlian the nu- 

 cleus of the mother cell. Each is about 5/^ long oy 6K 

 broad, though the size varies, ITo trace of any intcrn tr 

 cl e a r pc-rtition has been observed between the daughter nu- 

 clei, which lie uuite freely in the cytoplasm. 



The daugliter nuclei do not rejnain long in t}ie resting 

 condition. In each the nucleolus disappea.rs, and seven 



