24 



Mi croscopical Essays. 



Fig. 1, Plate V. reprefents a folar opake microfcope. 



Fig. 4, Plate VI. is a picture of the common folar microfcope. 



Fig. 3, Plate IV. is what is ufually called Culpeper's, or 

 the three pillared microfcope. 



Fig. l, Plate IV. the improved double and fingle microfcope. 



Fig. 2, Plate IV. the beft double conflrucled microfcope. 



Fig. i, Plate VII. A. the common double conflrucled microfcope. 



Fig. 3, Plate VIII. a microfcopic telefcope, or convenient 

 portable apparatus for a traveller. 



We cannot conclude this chapter better than with the following 

 obfervations on the microfcope. We are indebted to it for many 

 difcoveries in natural hiftory ; but let us not fuppofe, that the 

 Creator intended to hide thefe obj eels from our obfervation. It 

 is true, this inltrument difcovers to us as it were a new creation, 

 new feries of animals, new forefts of vegetables ; but he who 

 gave being to thefe, gave us an undemanding capable of invent- 

 ing means to affift our organs in the difcovery of their hidden 

 beauties. He gave us eyes adapted to enlarge our ideas, and. ca- 

 pable of comprehending a univerfe at one view, and confequently 

 incapable of difcerning thoie minute beings, with which he has 

 peopled every atom of the univerfe. But then he gave properties 

 and qualities to matter of a particular kind, by which it would 

 procure us this advantage, and at the fame time elevated the 



under- 



