The Cilium. 



199 



the miiscle-like spasmoneme is the contractile element. It is picked 

 out immediately by the above Ehrlich-glycerine mixture and, with 

 the myonemes and the cilia, is stained bright red when there is no 

 stain in the rest of the animal. 



Fig. O.^Oral cilia of Stentor killed in stroujt 

 Fig. 10. — Contractile elements of Epistylis. 

 Fig. 11. — Teased Myonome of Epistylis. 



Fleniniini 



No structure could be demonstrated in the spasmoneme itself. PI. 

 IV, Fig. G, is a microphotograph taken with an Ultraviolet Micro- 

 scope. In this photograph the spasmoneme appears perfectly homo- 

 geneous; on the other hand, its relation to the myonemes indicates 



