Plates IX (and X) 

 JVb. 13 Anaphase and telophase in a spleen cell of the mouse in culture. 

 X 5500 (reduction 5/6). (o) 2 minutes after anaphase began. The 

 chromosomes are still distinct, (b) 5 minutes later than (o). Stage of 

 apparent fusion of the chromosomes, (c) 7 minutes later than (a). The 

 daughter group is expanding, and now reveals a mass of fine chromonemata. 



{Continued on opposite page.) 



