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Books Books 1 - 10 of 14 on AM Hanover mean time, I was so fortunate as to see the sodium lines D, and D 2 ,....  
" AM Hanover mean time, I was so fortunate as to see the sodium lines D, and D 2 , reversed in the spectrum of the umbra of a large spot near the eastern limb of the sun. At the same time the c and F lines were also reversed, but with the great dispersive... "
Nature - Page 34
edited by - 1871
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The Popular Science Review, Volume 10

James Samuelson, Henry Lawson, William Sweetland Dallas - Science - 1871
...NH ; Sept. 26, 1870.—My dear sir,—I write to inform you that last Saturday, Sept. 22, about 11 AM Hanover mean time, I was so fortunate as to see...large spot near the eastern limb of the sun. At the sanie time C and F lines were also reversed, but with the great dispersive power of my new spectroscope...
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The Popular Science Review, Volume 10

James Samuelson, Henry Lawson, William Sweetland Dallas - Science - 1871
...Saturday, Sept. 22, about 11 AM Hanover mean time, 1 was so fortunate as to see the sodium lines D, and IX, reversed in the spectrum of the umbra of a large spot...near the eastern limb of the sun. At the same time C and F lines were also reversed, but with the great dispersive power of my new spectroscope I see...
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Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art

David Ames Wells, William Ripley Nichols, John Trowbridge, George Bliss, Charles Robert Cross, Samuel Kneeland - Industrial arts - 1871
...Professor Young of Dartmouth College : — "I write to inform you that last Thursday, Sept. 22d, about 11 AM Hanover mean time, I was so fortunate as to see the sodium lines D t and D 2 reversed in the spectrum of the umbra of a large spot near the eastern limb of the sun....
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ANNUAL OF SCIENTIFIC DISCOVERY OR YEAR-BOOK OF FACTS IN SCIENCE AND ART FOR ...

JOHN TROWBRIDGE, S.B. - 1871
...Professor Young of Dartmouth College : — "I write to inform you that last Thursday, Sept. 22d, about 11 AM Hanover mean time, I was so fortunate as to see the sodium lines v l and D 2 reversed in the spectrum of the umbra of a large spot near the eastern limb of the sun....
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Annual of Scientific Discovery: Or, Year-book of Facts in Science and Art

David Ames Wells, William Ripley Nichols, John Trowbridge, George Bliss, Charles Robert Cross, Samuel Kneeland - Industrial arts - 1871
...F, 2581.5, 2796., and A; 15 in all. "I write to inform you that last Thursday, Sept. 22d, about 11 AM Hanover mean time, I was so fortunate as to see the sodium lines D t and D 2 reversed in the spectrum of the umbra of a large spot near the eastern limb of the sun....
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Spectrum Analysis in Its Aqplication to Terrestrial Substances: And the ...

Heinrich Schellen - Spectrum analysis - 1872 - 455 pages
...similar phenomenon was observed by Young in both the D-lines. On the 22nd of September, 1870, he saw in the spectrum of the umbra of a large spot near the sun's eastern limb, the two sodium lines D, and D 3 reversed, or as bright lines in the manner represented...
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Spectrum analysis in its application to terrestrial substances, and the ...

H. Schellen, Sir William Huggins - 1872 - 662 pages
...similar phenomenon was observed by Young in both the D-lines. On the 22nd of September, 1870, he saw in the spectrum of the umbra of a large spot near the sun's eastern limb, the two sodium lines D, and D 2 reversed, or as bright lines in the manner represented...
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Spectrum Analysis in Its Application to Terrestrial Substances, and the ...

Heinrich Schellen - Astronomy - 1872 - 662 pages
...similar phenomenon was observed by Young in both the D-lines. On the 22nd of September, 1870, he saw in the spectrum of the umbra of a large spot near the sun's eastern limb, the two sodium lines D, and D, reversed, or as bright lines in the manner represented...
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Spectrum Analysis in Its Application to Terrestrial Substances, and the ...

Heinrich Schellen - Astronomy - 1872 - 662 pages
...similar phenomenon was observed by Young in both the D-lines. On the 22nd of September, 1870, he saw in the spectrum of the umbra of a large spot near the sun's eastern limb, the two sodium lines D, and D 2 reversed, or as bright lines in the manner represented...
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Contributions to Solar Physics: I. A Popular Account of Inquiries Into the ...

Sir Norman Lockyer - Sun - 1874 - 676 pages
...to quote from these observations. 1 On September 22nd, 1870, Professor Young saw the sodium lines Dj and D 2 reversed in the spectrum of the umbra of a...the same time the C and F lines were also reversed. CHAP. XXV. The figure gives the appearance of the sodium lines. In Rain-sal o/ the umbra of the spot...
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