THE MICROSCOPICAL JOURNAL ADVERTISER- 



Zeiss Microscopes. 



THE CARL I[ISS OPTICAL WIRKS IN JENA. 



Tbese works have no rival in the mannfactnre of stands and objectives. Their new 

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

 GEAPHic Apparatus. As Agent I am eniibled to import all their apparatus at the verv 

 lowest rates. Orders for Colleges and Institutions filled promptlj', duty free. Just out : 

 Carl Zeiss' Catalogue of Optical Measuring Instruments. 



Six new series of Photographic Lenses, cnlled the Zeiss Anastigmats (U. S. Paleii' 

 No. 435,271 j, are the newest production of the Carl Zeiss firm. Their superiority over a' 

 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, 



Si^tologidkl ]VIidfo^docpe^, $6g. 



STUDENTS' MICROSCOPES, $38 to $46, 

 COMPLETE. 



ILLUSTRATED CATALOGUE ON APPLICATION. 



Iiic»r | >orHto«l 1893. 



Spencer & Smith Optical Company, 



367-373 Seventh Street, 

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



MANITFAITUKERS OF 



High-Grade Microscopes, Telescopes, and 

 Accessories. 



PROMPT ATTENTION GIVEN AI,I, ORDERS. 



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



