Marvels of Pond-Life, 117 



difficulty. No trace could be seen of divisions into 

 separate cells, but they all appeared to live happily 

 together in one room, and if one went up all went 

 up, and if one went down all went down, as if their 

 proceedings were regulated by a community of sensa- 

 tion or will. 



Another little curiosity was a transparent cup upon a 

 slender stem, which stood upright like a wine-glass, 

 and supported on its mouth a transparent globe. By 

 removing a leaf which prevented the stalk being traced 

 to its termination, it was found to be a Vorticella, and 

 after two hours the globe was partially drawn in, and 

 reduced in size. Why the creature was engaged in 

 blowing this bubble I do not know, and have not met 

 with another instance of such conduct. 



~^^"^^Sv^^§^" 



