Carpenter, William Benjamin, 1813-1885 · London : John Churchill · leaf 194
n do bythe unassisted eye, into its proper place, the Microscopistthen brings his light (whether natural or artificial) to bearupon it, by turning the mirror in such a direction as to reflectupon its under surface the rays which are received by itselffrom the sky or the lamp. The concave miiTor is… … Arrangement of Microscope for Transparent Objects. distance at which it should be ordinarily set beneath thestage, is that at which it brings parallel rays to a focus; butthis distance should be capable of elongation, by the lengthen-ing of the stem to which the miiror is attached; since therays…
Microscopy
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