con- corona. In addition to these main expeditions, Mr. L. Trouvelot, error if the smoked glass is very dark, because the sun's densed the following: of Cambridge, Mass., a most skillful artist, accompanied by crescent may become so narrow as to be invisible through the This eclipse may be regarded… … and a half in the south. The Mercury transit observations two hours west of the meri- THE TOTAL ECLIPSE OF THE SUN, JULY 29, 1878, of last May, as far as they have been worked up, appear to dian in Colorado and Wy- 18, 1860. The dark shadow of the moon will first strike the demonstrate the fact…
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