Herschel, John F. W. (John Frederick William), Sir, 1792-1871 · London : Longman, Brown, Green, Longmans, and Roberts · leaf 283
HE SUN'S SPOTS. it borders on the bright surface. A more probable view has been taken by Sir William Herschel*, who considers the luminous strata of the atmosphere to be sustained far above the level of the solid body by a transparent elastic medium, carrying on its upper surface (or rather , to… … (389 a.) Such was the state of our knowledge of the ap¬ pearance and constitution of the solar spots at the time when this work first issued from the press. But in 1851, a further step towards penetrating the mystery of their nature was made by that excellent and indefatigable observer Mr. Dawes,…
Astronomy
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