Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 281
enser having con-siderable value, and speciallyadapted to lenses of low power,and up to those of \ inchfocus, has just been constructedand placed in our hands byMessrs. Powell and Lealand.It was made in response to theearnest suggestion of severalleading microscopists, and inmany respects fully… … Fig 9 199.—Swifts condenser. of *5, andqualities. adjunct to the photo-micrographer, since it M ill enable him to get alarge image of the source of light on the object; but its aberrationsare not so perfectly balanced as we could desire. It is possessed of a new feature so far as the condenser of…
Microscopy
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