ii6 



THE PSYCHIC LIFE 



APPENDIX. 



The subjoined cuts, explanatory of the conjugation 

 of Micro-organisms, refer respectively to the descrip- 

 tions on pages 67, 67 and 68, 68, 69 and 70, 71 and 72. 



Fig. 7 a. — Positions preliminary to 

 conjugation among the ParannEcium 

 aurelia. (Balbiani.) 



Fig. 7 5.— Several pairs of Stentor 

 cceruk'tcs fixed upon a conferva fila- 

 ment, enlarged fifteen diameters 

 (after BalbianiJ. 



Fig. 7 c. Position preliminary to 

 the copulation of the Stylonychia 

 mytilus. The two animals are super- 

 imposed upon each other by their 

 ventral faces (Balbiani), 



