Beck, Conrad, 1864- · London, R. & J. Beck, Ltd. · leaf 59
in. If a small circular cover glass be cemented in the centre of the 3 X 1-inch lower glass, a smalldrop of fluid can be confined tothe centre of the field for ex-amination. It can be used withsubstage condensers or dark-ground illumiaators. A live box consists of a plate3x1 inches, with an… … Fig. 54.—No. 3415,Trough.
Microscopy
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