Summary of Mount Wilson magnetic observations of sunspots for November and December, 1944
N. P. Reprinted from the Publications of the Astronomical Society of the Pacific, 1945. 8vo, pp. [41]-52; original blue printed wrappers; contains two articles: Sunspot activity during 1994 and Visual magnitudes of nova puppis 1942. Reprinted from the Publications of the Astronomical Society of the Pacific, Vol. 57, No. 334..... More