Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 332
y are the most Fll. 266.—Powell and Lea-efficient means of counteracting the danger land s protecting ring forincident on public exhibition of delicate course adjustment,objects under high powers. The foregoing constitute, it is believed, all the most importantpieces of apparatus which can be… … 302 CHAPTER V OBJECTIVES, EYE-PIECES, THE APEBTOMETEB . | i is manifest that everything in the form and construction as wellas in fche nature of the optical and mechanical accessories of themicroscope, exists for, and to make more efficient, the special workof the objective, or image-forming lens…
Microscopy
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