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OCR-text (abbyy)
Hale, George E/llery/, & Nicholson, Seth B
Magnetic observations of sunspots 1917-1924.
P. 1-2.	4:o Washington,D.C. 1938.
^Papers of the Mount Wilson observatory, vol.
5:1-2.
-Publication,Carnegie instutition of Washing-
ton. No. 498:1-2.
OCR-text (abbyy-crop)
39/9 ~722
Hale, George E/llery/, & Nicholson, Seth B
Magnetic observations of sunspots 1917-1924.
P. 1-2.	4:0 Washington,D.C. 1938.
-Papers of the Mount Wilson observatory, vol.
5:1-2.
publication,Carnegie instutition of Washing-
ton. No. 498:1-2.
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