Title: On the use of Zenith Telescopes during the coming Transit of Venus. By Mr. Ormond Stone, Assistant Observer, U. S. Naval Observatory, Washington. (Communicated by Commodore B. F. Sands, U. S. N. Superintendent.)
Authors: Stone, O.
Journal: Astronomische Nachrichten, volume 78, p.75
Bibliographic Code: 1871AN.....78...75S