Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 98
this isdecidedly advantageous where Sea-water or Acids are used. f The Stage is now more generally supported, either (as in Mr. Laddsmodel) on four legs of strong brass wire, which screw into its underside, andare packed in its drawer when dismounted; or (as made by Mr. Swift andMessrs. Parkes of… … Queketfs Dissecting Microscope, set up for useat A, and packed together at b. 54 CONSTRUCTION OF THE MICROSCOPE. round hole, through which a tubular stem works vertically with arack-and-pinion movement, carrying at its summit the horizontalArm for the magnifying powers ; and into the underside of…
Microscopy · Biology
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