1
2
Published: 1914
Superior document: Annals of the Astronom. Observatory of Harvard College 77
3
Published: 1912
Superior document: Annals of the Astronomical Observatory of Harvard College 67
4
5
6
Published: 1879
Superior document: Photometric observations made principally with the equatorial telescope of fifteen inches aperture during the years 1877-79 1
7
Superior document: Annals of the Astronomical Observatory of Harvard College 11
8
Published: 1879
Superior document: Photometric observations made principally with the equatorial telescope of fifteen inches aperture during the years 1877-79 2