THE MICROSCOPICAL JOURNAL ADVERTISER. 



Zeiss Microscopes. 



THE CAflL \m OPTICAL WiRKS IN J[NA. 



These works have no rival in the manufacture of stands and objectives. Their new 

 Catalogue of 1891 contains all the latest improvements in MicRoscoric and Photo-Micro. 

 GRAPHIC Appakatds. As Agent I am cnuhled to import all their iipparatus at this vorv 

 lowest rates. Orders for Colleges and Institutions filled promptly, duty free. Just oui : 

 Carl Zeiss' Catalogue of Optical MEAsuraNo Instruments. 



Six new series of Photographic Lenses, culled the Zeiss Anastigmats (U. S. Patent 

 No. 435,271;, are the newest production of the Curl Zeiss firm. Their superiority over u!l 

 others is everywhere recognized in Europe. 



Catalogues forwarded on application. 



F. J. EMMERICH, Sr., Agent, 



74: Murray St., New York, N. Y. 



JOSEPH ZENTMAYER. 



209 South 11th Street, - PHILADELPHIA. 



STUDENTS' MICROSCOPES, $38 to $46, 

 COMPLETE. 



ILLUSTRATED CATALOGUE ON APPLICATION. 



Incorporatfil 1893. 



Spencer & Smith Optical Company, 



367-373 Seventh Street, 

 Buffalo, N. Y., U. S. A. 



MASfUFA€TUKKR.S OF 



High-Grade Microscopes, Telescopes, and 

 Accessories. 



PROMPT ATTENTION GIV:eN AI,!^ ORDl^RS. 



Send for our new catalogue, just out, giving full descriptions and price lists. 



