Harvard Library (Harvard University)

1777 variables in the Magellanic Clouds

Henrietta S. Leavitt · 1908 · 60 citations

Magellanic Clouds, Celestial Mechanic, Astrophysics +1

Restriction from Immigration

Francis Amasa Walker · 1896 · 55 citations

Ethnicity, Human Migration, Public Policy +8

Dredging and other records of the United States fish commission Steamer Albatross, with bibliography relative to the work of the vessel.

C. H. T. Townsend · 1901 · 32 citations

Other Records, Engineering, Ocean Engineering +6

Spectra of bright stars photographed with the 11-inch Draper Telescope as part of the Henry Draper Memorial.

A. Maury, Edward C. Pickering · 1897 · 26 citations

Photometry, Engineering, Bright Stars +8

Archaeological research in Yucatan

1886 · 23 citations