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CARL REIGHERT 



MICROSCOPES. 



SOLE AGENTS FOR UNITED STATES. 



RICHARDS & CO., LTD., 



NEW YOEK, CHICAGO, 



30 East 18 Street. 108 Laie Strtit. 



MARINE DIATOMACEAE OF FRANCE 



Including All the British and ?ther European Species 



BYH. &M. PERAGALLO. 





■> t 4 



The first part (Raphidiese) is just out and contains 50 

 plates with 1124 species and varieties described in 240 

 pages of text. Price ^$10. 00 post free. The subscription 

 to the complete work will be maintained at $20 up to the 

 end of 1899, after which date it will be raised to $25 un- 

 til its completion. Send remittance and order s to J. 

 Tcmpere, Publisher, 168,Rue St-Antoine, Paris. 



ZEISS MICROSCOPES. 



The Carl Zeiss Optical Works in Jena 



Are recognized in Europe as the leading manufacturers of Stands and 

 Objectives. They have issued a new Catalogue for 1895, containing a 

 description of anumberoTnew accessories and apparatus which I am 

 enabled to import at lowest rates. Orders for colleges and institutions 

 filled prompty, duty free. New Catalogues forwarded on application, 

 against 20 cents in postage stamps. 



F. J. EMMERICH, Sr., Agent, 



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







