REPRODUCTION 



127 



Fig. 56. Mitosis in Trichonyinpha campanula, XSOO (Kofoid and 

 Swezy). a, resting nucleus; b-g, prophase; h, metaphase; i, j, anaphase; 

 k, telophase; 1, a daughter nucleus being reconstructed. 



central spindle begins to depress the nuclear membrane and the 

 chromosomes become shorter and move apart. The intra- and 



