Stars and telescopes; a hand-book of popular astronomy, founded on the 9th ed. of Lynn's Celestial motions (1899)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911. Celestial motions · Boston, Little, Brown and company · leaf 395
ALVAN CLARK (1804-1887) 336 Stars and Telescopes Percival Lowell, now mounted in his private obser-vatory at Flagstaff, Arizona. This glass and the Yerkesobj ective were the last work of Alvan Graham Clark,.his constant co-worker being M* Carl Lundin, anable optician who has served a… … GEORGE B. CLARK (1827-1891) The Lick 3 6-inch lenses are mounted in a cast-iron cell faced with inlaid silver where the glasses-rest against it. The weight of the objective in its-cell is about 700 pounds, and its cost was $53,000.An additional lens, or photographic corrector of 33.inches aperture,…
Astronomy
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