Download or read book Contributions from the Observatory of Columbia University, New York written by and published by . This book was released on 1892 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1892, the observatory of Columbia University began the publication of its series of Contributions ... the memoir was numbered 3 in the series, because it was thought best to reserve the first two number for two other publications. In 1892, the observatory of Columbia University began the publication of its series of Contributions ... the memoir was numbered 3 in the series, because it was thought best to reserve the first two number for two other publications.