Lockyer, Sir Joseph Norman, 1836-1920 · London, Macmillan · leaf 121
[CHAP. THE SUN'S PLACE IN NATUEE. … FIG. 36. — Showing object glass of horizontal telescope used with siderostat. understand and to clearly follow the observations which had been made previously by others ; if, therefore, I had attempted to go over the ground in the first instance with instruments ten times more powerful, giving me…
Helium · Meteoritic hypothesis · Nebulae · Stars · Sun
Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
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