Friday, July 16, 1920 



fe'iU^ 



for every 

 requirement 



|auscK'|oink 



locroscopes 



The Accepted Standard 



During the last fifty years Bausch & Lomb have designed and built microscopes 

 to fill every possible requirement. 



And when you buy a Bausch & Lomb Microscope you obtain an instrument 

 having every optical refinement and mechanical improvement demanded by 

 the practices of modern microscopy. 



Write for our new catalog which fully describes the advanced improvements 

 made in various models. 



Bausch S'Ipmb Optical (5. 



409 ST. PAUL STREET ROCHESTER, N.Y 



Leading Americanjnakers of Photographic Lenses, Microscopes, Projection- Apparatus (Balopticons) , 

 Ophthalmic-Lenses _and Instruments, PhoiomicrographicJApparatus, Range-Finders and Gun- 

 Sights for'^Armyland^Navy, Searchlight Reflector s^Stereo-Prism Binoculars,] 

 Magnifiers, and other high-grade Optical Products 



