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HENRY CROUCH'S 



First-Glass Microscopes. 



Student's Microscope. 



New Family and School 

 Microscope. 



New Series of Objectives. 



New Accessories. 



NEW ILLUSTRATED CATALOGUE, ON RECEIPT OF STAMP. MAILED ABROAD FREl 



HENET OEOUOH, 66, Barbican, London, E.G. 



Agents in Amjebioa, 

 JAMES W. QUEEN & CO., 924, Chestnut Street, Philadelphia^ U.S. 



