in PRACTICAL DIRECTIONS 279 



Paramoecium. In it are situated an elongated and curved meganudeiis 

 and a minute micromtdeus (not easy to distinguish in the resting 

 condition). Sketch. 



7. Make preparations as directed under Paramceciunl. Sketch. 



8. Look out for specimens undergoing fission, noting the different 

 stages, and the second, aboral ring of cilia on one of the daughter 

 individuals, which eventually becomes detached. Note these free- 

 six) imming forms, and also search for conjugating individuals a small 

 free Vorticella uniting with a large stationary one. Sketch. 



Carchesium Or Epistylis. You will very likely find specimens of 

 one of these, or of an allied genus, amongst the Vorticellse. Note 

 that several individual zooids are borne upon a branched stalk, together 

 forming a colony. 



