COLBY, Charles Galusha, editor, born in Rochester, New York, in 1830; died in New York City, 30 October, 1866. He was graduated at Wesleyan University, Middletown, Connecticut, in 1848, and soon afterward began teaching and lecturing on astronomy. In 1850 he was engaged with Prof. Bond, of Cambridge observatory, and calculated the eclipses for July, 1851, publishing his results in "Harper's Magazine" of that month. He also wrote an article on telescopes for the New York "Independent," which attracted the attention of scientific men. In the latter part of 1851 he removed to New York, where he was first employed in the office of the "American Railroad Journal," and then aided Dr. R. S. Fisher in the preparation of his "Statistical Gazetteer of the United States" and " American Statistical Annual" (New York, 1853). He afterward became assistant editor of Hunt's "Merchant's Magazine," and held the place till, on the death of Mr. Hunt, the property passed into other hands. Mr. Colby wrote the descriptive and statistical letter.press for Morse's "Geography of the World" (New York, 1856), Morse's " Diamond Atlas," and several smaller works. He was also the author of numerous cyclopaedia articles. He removed to Boston in 1861, where he was engaged on the " Commercial Bulletin," but was compelled by failing health to return to New York in 1864.