92 



BIOLOGY OF THE PROTOZOA 



divisional changes which for lack of a better term may be called 

 "purification" processes. These are associated with the so-called 

 " Kernspalt" or nuclear cleft which for decades has been an enigma. 

 A simple case is that of Uroleptus halseyi, an hypotrichosis cihate 



\f. , A 



A^A 



m m 



Fig 46 -Division of Dileptus gigas. The longated chromatin granules (C) divide 

 where they happen to lie. (Original.) 



