MINUTE AQUATIC ANIMALS. 77 



motions are evidently quickened by the glare of the sunlight, that falls upon 

 them from the lenses, and which they endeavor to shun. A group of Vinegar 

 eels in various attitudes, is shown in drawing 116, as they appear when magnified. 

 Some are in the act of swimming, others are at rest ; one has just died, and 

 the skeleton of another is seen at c. The breadth of the dead eel at a b is the 

 twelve hundred and fiftieth part of an inch. 



