-^5 Ob. j 



SCIENC 



New Series 



Vol. XLVI. No. 1178 



Feiday, July 27, 1917 



Single Copies, 15 Cts. 

 Annual Subscription, $5.00 



Stereoscopic Camera 



for 

 Binocular Microscope 



This new photomicrographic 

 camera is a natural development, 

 inspired by the favor accorded our 

 Binocular Microscope KA. It 

 makes a photomicrograph with the 

 same superior characteristics as 

 those obtained visuaEy with our 

 binocular microscope itself — proper 

 perspective, perception of depth, 

 form and soliditji and an image 

 erect and unreversed. 



Most striking results are ob- 

 tained with this instrument in 

 many classes of work. It admits of a wide range of appUcations 

 in educational, research or industrial laboratories. 

 PRICE, with 2 double Plateholders, $40.00 

 Special terms to educational institutions Write for descriptive circular 



Bausch ^ Ipmb Optical (5. 



552 ST. PAUL STREET ESOCHESTgR, N.\; 



New York 



San Francisco 



Washing^ton Chicago 



Leading American Makers of Photographic Lenses, Microscopes, Projection Lanterns 

 (.Balopticons), Stereo-Prism Binoculars and other High-Grade Optical Products 



GRAND PRIX— PANAMA-PACIFIC EXPOSITION 



