Proctor, Richard A. (Richard Anthony), 1837-1888 · New York, A.C. Armstrong and son · leaf 304
d They would, however, of course bring totheir aid all the ingenious devices of modern astronomicalobservation in order to overcome the difficulties inherentin that method. One of the contrivances naturally sug- 292 TRANSITS OF VENUS. gested to meet such difficulties is to photograph the sunwith… … o Russfati kytfoAtif^ils^ & well as fiiose of Lord Lindsaysexpedition, while placing great reliance on photography,^mg^loj^T^so^ a- uifthod of measuring the position ofVenus on the s^n^^sc,T)y means of a kind of telescopespecially constructed for such work, the peculiarities ofwhich need not be…
Astronomy
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