Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 152
ngular directions by the two milled-heads o, t ; and is fur-nished with two graduated scales, by means of which it may bebrought with exactness into any position previously recorded, so * This idea was suggested at nearly the same time by Dr. Leeson ; and wascarried out in an instrument constructed… … Nachets Chemical Microscope. stage is a circular glass cell, c, for holding the fluid to be examined ;in the bottom of this is an aperture, which is closed by a piece ofthin cover-glass well cemented round its edges, thus allowing theuse of high magnifying powers having a very short focus; whileits…
Microscopy · Biology
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