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" ... Disappointment will occur in any attempt at delicate investigation, if this direction is not carefully attended to. When the spectra of very small objects are to be viewed, powers of from \ in. "
How to work with the spectroscope - Page 42
by John Browning (F.R.A.S.) - 1878 - 66 pages
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - 1870 - 508 pages
...may be employed. The prismatic eyepiece is shown in section in Fig. 51. Blood, madder, aniline red, permanganate of potash solution, are convenient substances...dark clouds instead of delicate absorption bands. ANGSTROM'S AXD THALfi.VS MAPS OF THE SOT,AR SPEC! i" 3'3 3\1 311 310 309 208 307 lot 3O5 JO* 30J 302...
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Spectrum analysis, 6 lects

sir Henry Enfield Roscoe - 1869 - 392 pages
...employed. The prismatic eyepiece is shown in section in Fig. 48. Fiu. 48. Blood, madder, aniline red, permanganate of potash solution, are convenient substances...to give dark clouds instead of delicate absorption bauds. LECTURE V. Foundation of Solar and Stellar Chemistry. — Examination of the Soiar Spectrum....
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Spectrum Analysis -- Six Lectures

Henry E. Roscoe - 1869 - 372 pages
...eyepiece is shown in section in Fig. 48. FIG. 48. Blood, madder, aniline red, permanganate of po tash solution, are convenient substances to begin experiments...dark clouds instead of delicate absorption bands. LECTURE V. Foundation of Solar and Stellar Chemistry. — Examination of the Solar Spectrum. — Fraunhofer,...
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Cyclopadic Science Simplified

John Henry Pepper - 1869 - 722 pages
...higher, may be employed. Blood, matter, aniline red, permanganatc-of-potash solution (quite fresh), are convenient substances to begin experiments with....dark clouds instead of delicate absorption bands. Mr. Browning makes small cells and other contrivances to hold fluids for examination. The spectra obtainable...
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Spectrum analysis, 6 lects

sir Henry Enfield Roscoe - 1870 - 450 pages
...may be employed. The prismatic eyepiece is shown in section in Fig. 51. Blood, madder, aniline red, permanganate of potash solution, are convenient substances...dark clouds instead of delicate absorption bands. PLATE III. (See i KlRCHHOFFS MAPS OF THE SOLAR SPECTRUM Fl TO C« 67 66 65 64 61 60 58 58 57 58 SS...
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - 1873 - 542 pages
...be employed. The prismatic eyepiece is shown in section in Fig. 51. Blood, madder, aniline red, and permanganate of potash solution, are convenient substances...dark clouds instead of delicate absorption bands. LECTURE V. Foundation of Solar and Stellar Chemistry.—Examination of the Solar Spectrum.—Frannhofer,...
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Spectrum Analysis: Six Lectures, Delivered in 1868, Before the Society of ...

Henry Enfield Roscoe - 1873 - 552 pages
...be employed. The prismatic eyepiece is shown in section in Fig. 51. Blood, madder, aniline red, and permanganate of potash solution, are convenient substances...dark clouds instead of delicate absorption bands. LECTURE V. Foundation of Solar and Stellar Chemistry.— Examination of the Solar Spectrum. — Fraunhofer,...
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Cyclopædic science simplified

John Henry Pepper - 1877 - 762 pages
...permanganate-of-potash solution (quite fresh), are convenient substances to begin experiments with. Solutions tliat are too strong are apt to give dark clouds instead of delicate absorption bands. Mr. Browning makes small cells and other contrivances to hold fluids for examination. The spectra obtainable...
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Discoveries and Inventions of the Nineteenth Century

Robert Routledge - 1893 - 732 pages
...When the spectra of very small objects are to be viewed, powers of from 3 in. to i-2Oth, or higher, may be employed. Blood, madder, aniline dyes, permanganate...tubes should be used to hold fluids for examination. Mr. Browning has still further improved the micro-spectroscope by the ingenious arrangement for measuring...
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