Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 300
uction of the micro-scope does not readily admit of the connection of the selenite platewith the polarising prism, it is convenient to make use of a plate ofbrass (fig. 222) somewhat larger than the glass slides in whiclrobjects are ordinarily mounted, with a ledge near one edge forthe slide to… … Fig. 222. microscope, the slide containing the object is placed u\>o\i it, and,by an ingenious modification contrived by Dr. Leeson, the ring into,which the selenite plate isfitted being made movable,one plate may be substitutedfor another, whilst rotationmay be given to the ring bymeans of a…
Microscopy
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