Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 206
the object, and by that means to compensatefor various thicknesses of slip. The sub-stage apparatus is focussedby the milled head W. The entire bar is attached to an arc, J,working in the circular fitting, Y, and rotated by means of the milledhead X—the amount of rotation being recorded bv a… … Fig. 137. elaborate arrangement for the rotation of the entire instrument onits foot, which is graduated at B. It is not easy to see the practicalpurpose of this, as the object is not in the axis of rotation ; but it isprovided in order that the microscope may be turned round with-out being lifted…
Microscopy
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