1898.] MICROSCOPICAL JOURNAL 91 



that while the warrior, whose fame is born in the brutal 

 roar of cannon and whose path to glory leads over 

 thousands of mangled corpses and unspeakable sufferings 

 inflicted by him, is honored by raouments, that the genius 

 and toils of such a man who increased the common heri- 

 tage and the welfare of humanity should be permitted to 

 go unnoticed ? 



The stake which marks the limit of Tolles' achieve- 

 ments in the construction of microscopes has not been 

 advanced a single inch since Tolles' death ; indeed it has 

 never been reached again in spite of the efforts of the 

 opticians of the whole world." 



The occasion was utilized by the orator for urging the 

 formation of a National organization of Opticians in 

 order to solidify their efforts and resist the aggressions 

 of the votaries of physics who would reduce the opti- 

 cians to the level of mere mechanics. It was intimated 

 that opthalmologists are stealing much of the credit that 

 belongs to working opticians and that the correction of 

 this evil calls for united action in self-defence. The dis- 

 coveries of astronomy are credited to the users of tele- 

 scopes and not to the makers of the lenses without which 

 no discoveries could be made. The instrument maker 

 never has been recognized as an important factor in dis- 

 covery either with the telescope or the microscope. But 

 Tolles' best instrument has never yet found a man com- 

 petent to utilize itspossibilities. 



Microscopic Images and Vision. 



By lewis WRIGHT. 



1. The discussion in the Philosophical Magazine in 1896, 

 by Lord Rayleigh and Dr. Stoney has thrown consider- 

 able further light upon a subject which has been dis- 

 cussed for many years; but there seems still some- 

 thing to be added from the point of view of the micro- 



