San Francisco:: Astronomy Society of the Pacific, 1939., 1939. Series: Astronomy Society of the Pacific, vol. 51, no. 301, June, 1939. 8vo. 17, 1] pp. Illus. Original printed wrappers. Small rubber stamp on upper cover. Very good. Included within are 3 other papers: McMath & Pettit, "The Doppler effect in an eruptive prominence"; Seth B. Nicholson, "A prominence with large Doppler displacements"; D. O. Hendrix, "An extremely fast Schmidt camera."
(Inventory #: SJ13517)
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