ANNALS OF THE DEARBORN OBSERVATORY Northwestern University. Volume I: Meausures of Double Stars.
Evanston, IL: Northwestern University, 1915. First Edition. Paperback. Folio. [vi], 229 pages of text. Original printed paperback binding, is shelfworn, slightly chipped, and browned, with title printed clearly on the spine. Illustrated with several figures, and with four plates including a photograph of the Observatory. A small worm hole affecting..... More