in direct or reflected sun- ment, over many thousand times the surface the other oc- : on mother-of-pearl, and any one with a microscope may light, though some of them, he discovered, were also in the cupies, is proportionately diluted. The light which comes have noticed that these are formed by… … spectrum it will produce, however, depends much more on what these lines, or rather gaps, in the spectrum were, and SLIT AND SPECTBA. how they were formed in the sun. Taking the salted wick, the accuracy of the spacing, even, than on the fineness, and it can be shown that, though some lines may be…
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