PLATE XIV. 



----- ^ L 



m 



mm 





-ni 



- 



.<• \ fi 



wm < M 



»«; 





■ 



i(ww 





(i • 



13 14 



(S) (§3 



19 







16 



20 



18 



21 



Sexual Reproduction of Infusoria. 



[To face p. 464. 



