Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 327
attached to a rod turning in a pocket, while the upper one pivotson a milled head which clamps if required or releases it whenrequired for more easy cleaning. Varying pressures of the cover-glasses are obtained by turning the milled head in the centre of theplate, and the socket fits in the stage… … Fig. 258.—Mr. Rowlands reversible compressor. organisms, to compress them ver}T slowly and with great care whilewe are examining them with high powers. The cover-glass is ofnecessity thin, and the pressure from the minute dimensions of theobject must be very considerable in order to act upon the…
Microscopy
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