THE VOETICELLA. 



Remarkable in their structure, &c. 



the rock, and the other, which extended a little 

 *vay from it, was encircled with the yellow bor- 

 der above mentioned. 



Soon after the discovery of these surprising 

 animals, great numbers of people came to see 

 them. This was attended with some inconveni- 

 ence to the person through whose grounds they 

 were obliged to pass, and he resolved to destroy 

 the objects of their curiosity. That this might 

 be done effectually, he caused all the holes, out 

 of which Hie animals appeared, to be carefully 

 drilled with an iron instrument, notwithstanding 

 which they again appeared in the course of a 

 few weeks, and soon became as numerous ai 

 ever. 



ANIMALCULES. 



THESE animals are very simple in their form, 

 -and generally invisible without a magnifying 

 power. They are chiefly found in infusions of 

 animal and vegetable substances. 



The Vorticella, or wheel animals, are the most 

 remarkable both in their structure, their ha- 

 bits, and production. In general form they bear 

 a great affinity to the polypes, having a contrac- 

 tile naked body, furnished with rotatory organs 

 round the mouth ; and indeed many microscopi- 

 writers have denominated them cluster-po- 



