AMiTOSis IN Till-: i:mbk\'o oi-- i-\\sciolaria. 



A NUMBER of years ago. while studying the embi 

 Fasciolaria, I noticed evidences of amitosis in thiee 

 locations. As biological opinion has not reache(Wi st; 



a study of the facts in this case would perhaps prove <• 

 A few brief references to the literature of the subject 

 the unsettled conditio,! of public opinion in this matt 

 deyer (90) said that 

 Remak's simple am 



as the 



said tha 



is not derived from mitosis, and on the othi 

 is not a forerunner of the more coniplicated process." j 

 considers it a different type which along with karyokine 

 been transmitted from the simplest forms oi hie to th 

 highly organized. Nor is there unanimou.-- con^en c s 

 significance of amitosis. The bulk ot observation is 

 effect that mitosis is found m growing (/. c-, legLiiUci i\e 

 and amitosis is found in senescent, metabolic 01 pa lo o^ 

 In 1 89 1 Ziegler contended that an! it (.sis is due ^''^^^'j'";-^^'^ 



espoused this view and detended it stiongl}- 

 thes'c writers amitosis is never regenerate e (/. ^..^ '"^'"f 

 oping tissue), but seals the tate ol a nut cus 

 subsequently divide mitotically. b^- 1^- ^^^l^""^ 

 Ce//, appears to be less faNorably disposed to accept ^us 

 the 1900 edition of his work than in the edition ot i- <) ) 

 1900 edition he says that the view is .^,,the 

 "there can be no doubt but that ^^^^ 

 general way represents the truth, and ^^^^^^'.^^^^j^^J^^'' 

 of cases 

 the generative 



