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and Beck who lia\e done so much in furnishing us with ex- 

 cellent instruments at a comparatively low price. A striking 

 specimen of this kind is shown in the present Exhibition^ in 

 their so-termed Universal Microscope, which has been already 

 described in this journal. Another form of instrument, which 

 in our opinion appears to combine almost all that is desirable 

 or that can be expected in an instrument of moderate price, is 

 exhibited by Mr. Pillischer, of which, as somewhat of a novelty, 

 we give a figure. This shows that the instrument is of a compact 



and convenient form, and on inspection it will be found to be 

 constructed with excellent finish. The stage movement is 



