24 



HOW TO USE THE MICROSCOPE 



that, if he is disposed to do so, he can spend much 

 more money on a stand than I have indicated. 



Having secured a satisfactory stand, the beginner 

 will proceed to select objectives, which, after all, 



Fig. 10,— Swift's 



' Portable Clinical and Field" 



MiCBOSCOPB. 



perform the most important function of a micro- 

 scope. The number of objectives on the market is 

 legion, and I shall not venture to comment on the 

 various kinds and makes, nor shall I load valuable 

 space with an attempt to elucidate the principles 



