The instruments in the old observatory at Peking : a paper read before the Royal Irish Academy, June 12, 1881, and reprinted from the "Proceedings," 2nd ser., vol. iii. (Science), no. 7, December, 1881 / by J.L.E. Dreyer.

pp. 468-472 ;, 28 cm.

QB17 .D73 1881

Astronomical instruments -- China -- Beijing -- 17th century.

Dublin :: Printed at the University Press by Ponsonby and Weldrick, 1881.

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