1
2
3
4
5
出版: 1890
Superior document: Annals of the Astronomical Observatory of Harvard College 24
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Superior document: Annals of the Astronomical Observatory of Harvard College 23
7
出版: 1890
Superior document: Discussion of observations made with the meridian photometer during the years 1882 to 1888 1
8
出版: 1899
Superior document: Discussion of observations made with the meridian photometer during the years 1882 to 1888 2
9
出版: 1900
Superior document: Annals of the astronomical observatory of Harvard College 37,1