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Report of a Committee of the American Philosophical Society on Astronomical Observations : containing observations made in different parts of the United States, on the solar eclipse of February 12th, 1831 : read October 7, 1831 (1834)

American Philosophical Society. Committee on Astronomical Observations · [Philadelphia] : [Publisher not identified] · leaf 9

An illustration from Report of a Committee of the American Philosophical Society on Astronomical Observations : containing observations made in different parts of the United States, on the solar eclipse of February 12th, 1831 : read October 7, 1831, 1834, leaf 9
P.M. 31 25 10 m. 28 27 1 h. P.M. 26 m. 31 46 37 34 The solar spectrum was observed several times during the eclipse. We were not sensible of much change in it, but thought that about the time of greatest obscuration,. the violet, though very bright, was rather paler than at other times. A 30 inch… … Vol. IY. — 2 H

Solar eclipses -- 1831

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

More pictures from Report of a Committee of the American Philosophical Society on Astronomical Observations : containing observations made in different parts of the United States, on the solar eclipse of February 12th, 1831 : read October 7, 1831

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