CHAPTER XVII 



THE MICRO-TELESCOPE AND SUPER MICROSCOPE 



THOSE of our readers who have borne with us 

 thus far may quite excusably have thought 

 that the last word had been attained in the 

 construction of the microscope. It is true that differ- 

 I ent makers have made various improvements to their 

 instruments, from time to time in recent years, most 

 } of them of minor importance but useful in the aggre- 

 gate. But a few years ago, however, the advent of the 

 Micro-Telescope and Super-Microscope marked an 

 epoch in the manufacture of the microscope. We 

 have shown that great strides were made in scientific 

 investigation when the first simple lenses were manu- 

 factured, that there was a lull in microscopic re- 

 search till the appearance of the compound micro- 

 scope and now, when the latest instruments are in 

 the hands of scientific workers, further possibilities 

 are opened up. 

 In all microscopes — the best as well as the cheaper 



I instruments — there is one failing which very early 

 _ forces itself upon the user. They haye very little 



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