ength of the mountains. Then you catch a glimpse corner stone of the observatory, to which this article is of experiments have been made. devoted, was laid, and to-day the work is practically The dome for the 12 inch equatorial is 25 feet wide, complete. When Mount Hamilton was selected as the… … graphy. begun, 7,000 tons of rock and earth The large telescope, which em- have been removed to level a pla- bodies the expressed object of the teau upon which the buildings of Cleveland. The tube is nearly cylindrical, and is 60 feet in length. There are three finders, 6, 4, and 3 inches in…
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