EFFECTS OF CONJUGATION 



73 



tion but a process of protoplasmic reorganization, followed 

 by renewal or re-birth of all vital activities including that of 

 reproduction. 



FIRST MATURATION DIVISION OF MICRONUCLEUS 



SECOND AND THIRD 

 DIVISION OF MICRONUCLEUS 



THREE SOMATIC DIVISIONS OF FERTILIZED NUCLEUS 



FERTILIZATION 



TWO CONSECUTIVE DIVISIONS 

 GIVING FOUR NORMAL CELL5 



FIG. 30. Diagram of the consecutive stages in conjugation of Paramecium 



can-datum. 



Investigations subsequent to those of Biitschli have revealed 

 all the happenings during the process of conjugation in Para- 

 mecium. The micronuclei in each cell first begin to swell by 

 the absorption of fluids from the endoplasm; the chromatin 



