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On Microscopy in the United States of America. 



By Henry Crouch, F.R.M.S. 



[Bead December 22nd, 1876.) 



It has been suggested to me by our Secretary that some account 

 of the microscopes exhibited at the Centennial Exhibition lately 

 held in Philadelphia, and also of the present condition of microscopy 

 in the United States, would be of interest to our members ; and 

 although feeling rather diffident in offering my opinions upon the 

 subject, from the fact of my being an exhibitor, perhaps I may be 

 excused for doing so, in default of any remarks being offered by 

 others better qualified, or having a more extended experience. 



I propose, therefore, first to notice the instruments exhibited by 

 makers of the different countries represented — premising that some 

 -well-known and respected makers, both American and European, were 

 unfortunately absent — and then to ask your attention to any novelties in 

 detail or construction that occur to me as worthy of remark, taking 

 them in accordance with the respective value and importance of the 

 various exhibits. The countries represented were England, America, 

 France, Germany, and lastly Japan. With respect to those 

 exhibited by English manufacturers, it will not be necessary for me 

 to describe instruments so well known to you as those manufactured 

 by Messrs. Beck, Dallmeyer, Ross, and myself, comprising the 

 English exhibitors. It will be sufficient to observe that Messrs. 

 Ross and Co. exhibited some twenty, Messrs. Beck about twelve, 

 Messrs Dallmeyer two, and myself sixteen ; including, with one 

 exception, every form of stand manufactured in this country, and 

 together being more than twice the number exhibited by all other 

 countries included. 



The American makers represented were Messrs. Zentmayer, 

 J. "W. Queen and Co., the Bausch and Lomb Optical Co. (with 

 whom is associated Mr. Gundlach), and Mr. Wm. Wales, who 

 exhibited a few objectives only. Messrs. Zentmayer exhibited some 

 nine microscopes, Messrs. Queen and Co about six, and the Bausch 



