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United States Naval Observatory
4
Hall, Charles Francis, 1821-1871
2
Nourse, J. E. (Joseph Everett), 1819-1889
2
United States. Navy Dept
2
Boeck, M.
1
Fromm, C. M.
1
Hall, Charles Francis , 1821-1871
1
Kadler, M.
1
Mueller, Cornelia
1
Ojha, R.
1
Ros, E.
1
Rothschild, R. E.
1
United States Naval Observatory. Nautical Almanac Office
1
Wilms, J.
1
YA Pamphlet Collection (Library of Congress) DLC
1
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1821-1871
3
Charles Francis
3
Hall
3
1820-1857
2
1832-1881
2
Elisha Kent
2
Eskimos
2
Franklin
2
Hayes
2
I. I. (Isaac Israel)
2
Kane
2
*GALAXIES
1
*IMAGES
1
1786-1847
1
AGN(ACTIVE GALACTIC NUCLEI)
1
Arctic regions
1
Arctic regions--Discovery and exploration
1
Astronomy
1
Astrophysics
1
CENTAURUS A(GALAXIES)
1
Canadian Arctic Expedition (1913-1918)
1
Discoveries in geography
1
Explorers
1
G665 1862 .H2
1
GAMMA RAYS
1
Inuit
1
John
1
John--Sir--1786-1847
1
RADIO ASTRONOMY
1
RADIO JET COUNTERJET SYSTEMS
1
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