262 



REDUCTIOX OF THE CHROMOSOMES 



resting period ; and I do not think that even the observations of 

 Flemming (97), who has pubHshed the fullest evidence in the case, 

 completely establish the occurrence of a subsequent longitudinal divi- 



Fig. 131. — (Compare Fig. 27). Maturation-divisions in Salanjatidra. [E from FlemMING, 

 the others from Meves.] 



A. First division in mctaphase, showing heterotype rings. B. Anaphase; longitudinal split- 

 ting of the daughter-loops. C. Telophase. D. Ensuing pause. E. Early prophase of second 

 division with longitudinally divided segmented spireme. F. Later prophase. G. Metaphase of 

 second division. 



sion of the chromosomes in the second mitosis. In DesmognatJins, 

 however, where the resting stage is less complete, Kingsbury ('99) 

 finds the longitudinal split in the persistent chromosomes of the 



