A Popular History of Astronomy During the Nineteenth Century Fourth Edition
CHAPTER III
RECENT SOLAR ECLIPSES
Expeditions to Spain--Great Indian Eclipse--New Method of Viewing Prominences--Total Eclipse Visible in North America--Spectrum of the Corona--Eclipse of 1870--Young's Reversing Layer--Eclipse of 1871--Corona of 1878--Varying Coronal Types--Egyptian Eclipse--Daylight Coronal Photography--Observations at Caroline Island--Photographs of Corona in 1886 and 1889--Eclipses of 1896, 1898, 1900, and 1901--Mechanical Theory of Corona--Electro-Magnetic Theories--Nature of Corona 166