ii8 



THE PSYCHIC LIFE 



EXPLANATION 



FIG, 



O fe O OJ 1- -^ 



" ^ c B 



7E. 



In the Chilo don cu- 

 cullulus the following is 

 the series of phenomena 

 presented (the row of fig- 

 ures given opposite, have 

 been procured through 

 the kindness of M. Bal- 

 biani, and will serve to il- 

 lustrate our description): 

 The figure A shows the 

 beginning of conjugation; 

 each animal is shown with 

 its mouth {b), its multiple 

 contractile vesicles (z/. c], 

 its nucleus {n), and its nu- 

 ci;;;'c~q cleolus («!'); the nucleo- 

 " c q '^ S § S ^^^ '"'^l become the main 

 f-mSaro-S-- seat of the modifications 

 g o 01 g S o" effected in fecundation. 

 MO 2 K ° * ^ III ttis figure B the prin- 

 ■^.Sg„„jf cipal change pertams to 

 - S the nucleolus; in each of 

 the two animals, the nu- 

 cleolus has moved away 

 from the nucleus and has 

 begun to break apart into 

 two segments; the nucleus 

 commences to show signs 

 of regression. Between 

 the figure .Sand the figure 

 C phenomena take place 

 .2 -a .S rS J p S^ of the highest importance, 

 but which are still the 

 subject of dispute. The 

 following appears from 

 present investigations to 

 1^.2 ci'g „ g be the most probable: the 

 ''■HI.SS'c'" two animals in conjuga- 

 a Me. 8 .DM tion exchange with each 



