LOOKING-GLASS. 
191 
in melancholy mood, they lie down on the brink of 
a pool, in hollow rocks, or under barren bulhes. 
However, as every link in the chain of creation de- 
ferves notice, fo, with all their imperfections, thefe 
animals excite a degree of intereit in the mind of 
a naturalift, who fees with pleafure their admi- 
rable ftruCture rendered ufeful to them upon the 
principles of mechanifm. 
ESSAY 
