SIMPLE MICROSCOPES. 



Simple microscopes are usually termed Jiiagni- 

 fiers and whether consisting of one or several 

 lenses in close contact, always remain simple. 

 They are made to be held in the hand or are fixed 



Fig. 12. 



Fig. 13. 



on a stand or mounting, with provisions for adjust- 

 ing for focus, thus to give steadiness and leave the 

 hands free for dissecting or moving the object 



