SEX AXI) HEREDITY 



cytoplasmic filaments, which originate outside the nuclear n.. • 

 position IS at first irregular, but presently they become arranged ^ 



•I. m. 



mr 



46; 



IV. 



V. 



V!. 



^T^^rtJ'^pTy^ 



VII. 



Wj 



Vill. 



L, 



Jm. 



f'-^^ 



ix 



^-^ 



I'IG. 392. 



Successive stages of division of somatic cells of the same root ol A. 

 by Dr. J. M. Thonipsori. ( x 730.) For detailed de«cripli<>:. 



verge to two poles, thus constituting the nuclear spindle (n; .c nudcar 



membrane cannot now be recognised, and the half-chroniu^uiutf* Attached to 



