Stars and telescopes; a hand-book of popular astronomy founded on the 9th ed. of Lynn's Celestial motions (1901)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911 · Boston, Little, Brown · leaf 415
-* _ I ^ Xx THE PNEUMATIC COMMUTATOR AND PHOTOGRAPHIC BATTERY OF ECLIPSE INSTRUMENTS (TODD) (As mounted at Cape Ledo, Africa,for the total eclipse of December i88o) … o ^, c • :< F- ** * 2; fcs Z *„ X %J Z <o <■ - 2 -V O <o OS O *, (J t/) ■si tt H < s I. ° 8 < co r-O a a. Ou. wu > w o R8 s 2 £ < Telescopes and Houses for Them 363 bright inner corona would otherwise be. In the de-vice illustrated opposite, three concentric rings and…
Astronomy
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