MKTHOD OF CELL DIVISION IN MONIEZIA. 



Fig. I shows two nuclei in close contact, with the surfaces of 

 contact flattened. If each nucleus surrounds itself with cyto- 

 plasm it is difficult to understand how a condition like Fi. I 

 can arise except l>y division. Moreover, this is not the usual 

 result of mitotic divi-ion in Moniezia, nuclei which ari-e by 

 mito-i- arc -eparatcd by an appreciable distance when they form 

 and are tonally of equal -i/e, which the two nuclei in the figure 

 are not. 



I . J sho which I am unable to interpret except as a 



din-ci division. The nio-t careful focu-in^ -ho\\ - that the nuclei 





3 





fej 



5 



. . 



7 



8 



are in ihe >ame plane and that the iin-inbr.ine -eparatin^ them 

 i- ii"i a -!iand of "linin" but a n-al membrane. Moreover, thi-> 

 membrane i- appareiilly thinner and more delicate than other 

 pi'rtit'ii- of the nuclear membrane. 



In 1 g ; two nuclei .ire -ho\\ n which -eem to be just com- 

 pleting di\i-ion. much a- in l-'i^. I. 



1 i^. 4 shou-, t\\.. \et\ di>tinctl\' hemispherical nuclei with 

 llatteiied surfaces parallel and -t-parated by a Miiall amount !' 



