RECREATION. 



xxi 



The Revolution in Field and Marine Glasses 



ONE-HALF ACTUAL SIZE— WEIGHT, 12 OUNCES 



Baiisch & Lomb-Zeiss 



STEREO Field Glasses 



By an arrangement of two double reflecting prisms of superior quality the ray of 

 light is bent upon itself four times without the slightest loss of brilliancy, making it 

 possible to place the object lenses far enough apart to obtain perfect stereoscopic effect, 

 and affording optical powers hitherto unobtainable. 



The eyepieces are the same as those used in the most powerful astronomical tele- 

 scope, do not tire the eyes, and, where the eyes 

 are not mates, can be adjusted separately. When 

 once adjusted, they are set for objects at prac- 

 tically all distances. 



FIELD OF BAUSCH & LOMB-ZEISS GLASS 

 BOOKLET FREE. ADDRESS DEPT. P 



FIELD OF OLD STYLE BINOCULAR GLASS 



These figures show the correct comparative size of 

 field of the Bausch & Lomb-Zeiss STEREO Field 

 Glass, and that of the best form of the ordinary- 

 binocular .of the same magnifying power, and six 

 times the size. 



MANUFACTURERS 



FOR SALE AT ALL OPTICIANS. 



BAUSCH & LOMB OPTICAL CO. 



NEW YORK 



ROCHESTER, N Y, 



CHICAGO 



