Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 366
e,n sine u = 5 ; on the oil side n sinen sine u u = n sine u: sine vi = t)V , -rig =329, which (.. the tables) is the natural sine of19j°. It follows that the pencilhas been bent in the cedar oil 10^°out of its original course, and acone of G0° in air becomes a cone of38^° in cedar oil or crown… … quently a cone of either 97.}° in water, or 82j 0 in oil or crown glass,is the exact equivalent of the whole hemispherical radiant in air. In 336 OBJECTIVES, EYE-PIECES, THE APEKTOMETEK Other words, and to vary the mode in which this great truth: hasbeen before; stated, the theoretical maximum…
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