1925 - 1935
The Pro-Astronomic Hall featured paintings by Howard Russell Butler, including those of the solar eclipses of 1918, 1923, and 1925, solar prominences, the Aurora Borealis, the Approaching Shadow of the Oregon Total Solar Eclipse, A Lunar Landscape, and the Earth as Seen from the Moon. Other exhibits included photographic transparencies showing eclipse phenomena, comets, meteor trails, and photographs of the moon made at the Yerkes Observatory (2, 1928, p. 9; 1, 1926, p. 39). The corridor outside the hall exhibited eight paintings of volcanism by Angelo Heilprin, models of Mt. Pelee, paintings of Aurora Borealis by Leonard Moore Davis, a rotating monthly sky chart, exhibits of compasses and sundials, and time-measuring instruments (1, 1926, p. 39; 1, 1927, p. 38; 2, 1931, p. 39).
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