Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 230
for large dissections), the armcarrying the lenses is made with a double bend, which, when itsposition is reversed, as in the dotted outline (which is readily done byunscrewing the milled head that attaches it to the top of the rackedstem), gives the additional inch required. As in the Quekett… … Fig. 159.—Laboratory dissecting microscope. lenses are made in grooves beneath the hand-supports. The ad-vantages of this general design have now been satisfactorily demon-strated by the large use that has been made of it ; but the detailsof its construction (such as the height and slope to be…
Microscopy
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