The botanist's companion; or, Directions for the use of the microscope (1860)
Balfour, John Hutton, 1808-1884. [from old catalog] · Edinburgh, A. and C. Black · leaf 17
rig. 11. of the instrument. The body consists of a telescope tube eight inchesin length, held by a split tube three inches long. It may be elevated or Fig. 11. Oberliausers portable students microscope. 10 COMPOUND MICKOSCOPE. depressed by the hand by a cork-screw movement, and this constitutes … Jig. 12. the coarse adjustment. It is attached to a cross-bar and pillar, at the
Botany · Microscopy
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