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" Fraunhofer in 1815, by whose name the dark lines are still known, not only to map some six hundred of them, but also to discover similar lines, but differently arranged, in several stars. Further, he found that a pair of dark lines in the solar spectrum... "
Publications of the Astronomical Society of the Pacific - Page 135
by Astronomical Society of the Pacific - 1909
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Littell's Living Age, Volume 214

1897 - 916 pages
...the bad annealing of his prism, though he says that It was made of good glass and free from bubbles. The dark lines were described- first by Wollaston...knowledge of the time had to be summed up by Mrs. Somerville in the negation: "We are still ignorant of the cause of these rayless bands." Later on,...
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Essays in Astronomy

1900 - 598 pages
...first by Wollaston in 1792, who strangely associated them with the boundaries of the spectral colours, and so turned contemporary thought away from the direction...knowledge of the time had to be summed up by Mrs. Somerville in the negation, " We are still ignorant of the cause of these rayless bands." Later on,...
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Publications of the Astronomical Society of the Pacific, Volume 22

Astronomical Society of the Pacific - 1910
...use. "... It is not easy for men of the present generation. Astronomical Society of the Pacific. 153 familiar with the knowledge which the new methods...knowledge of the time had to be summed up by Mrs. SOMERVILLE in the negation : 'We are still ignorant of the cause of these rayless bands.' "Later on,...
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Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1911 - 846 pages
...dark lines are still known, not only to map some 600 of them, but also to discover similar lilies, but differently arranged, in several stars. Further,...knowledge of the time had to be summed up by Mrs. Somerville In the negation : " We are still ignorant of the cause of these rayless bands." Later on...
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Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1911 - 840 pages
...observation contained the key to the interpretation of the dark lines as a code of symbols, but Frauuhofer failed to use it; and the birth of astrophysics was...knowledge of the time had to be summed up by Mrs. Somerville in the negation : " We are still Ignorant of the cause of these rayless bands." Later on...
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Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1911
...left to Fraunhofer in 1815, by whose name the dark lines are still known, not only to map some 600 of them, but also to discover similar lines, but differently...knowledge of the time had to be summed up by Mrs. Somerville in the negation : " We are still ignorant of the cause of these rayless bands." Later ou...
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Annual Report of the Board of Regents of the Smithsonian Institution

Smithsonian Institution. Board of Regents - 1911 - 848 pages
...also to discover similar lines, but differently arranged, in several stars. Further, he found that n pair of dark lines in the solar spectrum appeared...knowledge of the time had to be summed up by Mrs. Somerville in the negation : " We are still Ignorant of the cause of these rayless bands." Later on...
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The Twentieth Century, Volume 41

1897 - 1044 pages
...was left to Fraunhoferin 1815, by whose name the dark lines are still known, not only to map some 600 of them, but also to discover similar lines, but differently...knowledge of the time had to be summed up by Mrs. iSomerville in the negation : ' We are still ignorant of the cause of these rayless bands.' Later on,...
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The Nineteenth Century, Volume 41

1897
...was left to Fraunhoferin 1815, by whose name the dark lines are still known, not only to map some 600 of them, but also to discover similar lines, but differently...knowledge of the time had to be summed up by Mrs. Somerville in the negation : ' We are still ignorant of the cause of these rayless bands.' Later on....
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