THE MICROSCOPICAL JOURNAL ADVeRTlSHR. 



Zeiss Microscopes. 



THE CIIBL SEISS OPTICIIL WIRKS IN JENJI. 



These w. -ks have no rival in the manufacture of stands and objectives. Their new 

 Catalogue of 1$^J contains all the latest imjirovements in MicRosconc and Photo-Micro- 

 OBAPHio Appaha ^..■^. f^s Agtnt I am enabled to import all their npparatus at the ven 

 lowest rates. OrUeit for Colleges and Institutions filled promptly, duty free. Just out : 

 Carl Zeiss' Catalogue of Oi' "ical Measuring Instruments. 



Six new series of rV.-^^'raphic Lenses, culled the Zeiss Anastigmats (U. S. Patnii 

 No. 435,271;, are the newest production of the Carl Zeiss firm. Their superiority over all 

 others is everywhere recognized in Europe. 



Catalogues forwarded on application. 



F. J. EMMERICH, Sr., Agent, 



74 Murray St., Neiv York, N. Y. 



JOSEPH ZENTMAYER. 



209 South 11th Street, - PHILADELPHIA. 



STUDENTS' MICROSCOPES, $38 to $46, 

 COMPLETE. 



ILLUSTRATED CATALOGUE ON APPLICATION. 



Incorporated IS9.3. 



Spencer & Smith Optical Company, 



367-373 Seventh Street, 

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



MANCFAITUKERS OF 



High-Grade Microscopes, Telescopes, and 

 Accessories. 



PROMPT ATTENTION GIVEN AI<I, ORDERS. 



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



