University of Oxford. University Observatory,
Pritchard, Charles, D.D., 1808-1893. No. 4 in **E.5142.43 Researches in stellar parallax by the aid of photography from ob- servations made at the Oxford University Observatory, to which is appended a concise history of all parallactic researches made by other astronomers. Oxford. The Clarendon Press. 1892. iv, 48 pp. Tables. 25 cm., in 4s.
x } This card was prinicd at the Boston Public Library May 1, 1936. Do755—University of Oxford. U Observatory.—Photography. Celestial.
— Parallax. Hist.