Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 93
if the theory holds good, we should find the imageof the upper lines identical with that of the lower. On replacingthe eye-piece we see that it is so : the upper set of lines are doubledin number, a new line appearing in the centre of the space betweeneach of the old (upper) ones, and upper and… … Fig. 56. Fig. 57. A case of apparent creation of structure similar in principle tothe foregoing, though more striking, is afforded by a network ofsquares, such as fig. 58, having sides parallel to the page, which givesthe spectra shown in fig. 59, consisting of vertical rows for thehorizontal lines…
Microscopy
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