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THE PSYCHIC LIFE 



EXPLANATION OF FIG. J E. 



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In the Chilodon 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 

 .2 S - sf 3 "o ^ I contractile vesicles (v. c. ), 

 8 - <u its nucleus (n), and its nu- 

 s cleolus (nu}\ the nucleo- 

 J = = ='5 o % lus will become the main 

 seat of the modifications 

 effected in fecundation. 

 In the figure B the prin- 

 cipal change pertains to 

 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 B and the figure 

 C phenomena take place 

 of the highest importance, 

 but which are still the 

 subject of dispute. The 

 following appears from 

 present investigations to 

 be the most probable: the 

 two animals in conjuga- 

 tion exchange with each 



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