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.
   
This card was printed at the Boston Public Library May 1, 1936. Do755—University of Oxford. Un bservatory—Photography. Celestial.
— Parallax. Hist.