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Observations Made During the Year ... at the United States Naval Observatory

其他書名	1885 (1891)
出版	U.S. Government Printing Office, 1891
URL	http://books.google.com.hk/books?id=YmhPvJISthsC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋The contents of this volume consist of astronomical and meteorological observations made in 1885, as well as several plates of the Saturnian rings and several appendices.