Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 118
ed an ordinary 1inch, 1| inch or 2 inch Rosss (Zentmayer) Students Microscope. Objective, which answers the purpose of an Achromatic condenser; * The cost of the above Microscope, with two Eye-pieces (B and C), andtwo Objectives (5-8ths and l-7th inch) giving—with the Draw-tube—a rangeof powers… … n CONSTRUCTION OF THE MICROSCOPE. and when a pencil of light reflected from the mirror has been madeby it to focns in the object, the swinging of the tail-piece to one sideor the other will give any degree of obliquity to the illnminating pencilthat may be desired, without throwing its focns off…
Microscopy · Biology
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