HAETNACK MICROSCOPES. 



THE HARTNACK MICROSCOPES AND OBJECTIVES 



lowledged by the most eminent experts as the best in- 

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ISTOLOaiGAL, BOTANICAL, AND OTEEB 

 SCIENTIFIC RESEARCH. 



Recommended by the Professors of Harvard Univer- 

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Arrangements have 

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 their Objectives, can 

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 American market in com- 

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Sole Agents 



we guarantee them to be 

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Prices Irom $20 to $300. 



stand No. VII. 



Selling Agents for Chance's Slides and Cover Glasses, 

 and MarJcoe's Mounting Materials. 



IMPORTERS AND MANCFACTCKEBS OP 



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Correspondence solicited. Catalogues on application. 



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