ime be compact in form and small inexpense. These desiderata appear to be accomphshed inthe instrument represented in the opposite page, theprice of which, including three pair- of achromatic lensesand case, is bl. \Qs, Its optical qualities are clear defi-nition, moderate penetration, and a large… … Mr. Pritchards Vertical Achromatic Microscope. 176 MICROSCOPIC OBJECTS. Description of Engraving.—^The eye-piece is seen at tt,the body at b, and the object-glasses are screwed into thebottom of the tube or body at d. The arm c is attachedto the top of the triangular gun-metal bar e, and has…
Microscopy
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