Electro astronomical atlas ... with explanatory notes, questions and answers (1874)
Spoor, J. W. (Joseph W.) · Albany, N.Y., Weed, Parsons and Company · leaf 36
KARVXRC CCLLE6E OSSSRVATOKY lai English miles L. SOLAR PROMINENCES. Jf V s9 »L PLATE IE. … SOLAR PROMINENCES English milisl 9 ip H *9 W W ELECTRO-ASTRONOMICAL ATLAS. 21 LESSON IX. Analysis. Solar Prominences — Time of Appearance — Production — Duration — Height — Appearance of Jets — Scenes from Harvard College — Spots — Passage over Disc — Appearance — Uniform Time. Solar Prominences.…
Astronomy
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