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Subject
- History5
- Yale College (1718-1887)3
- Yale College (1718-1887). Class of 18683
- Indians of North America2
- Ackermann, Rudolph, 1764-18341
- Ackermann, Rudolph, 1793-18681
- Adams, Thomas Sewall, 1873-19331
- Adler Planetarium and Astronomical Museum1
- African Americans1
- Allegheny Observatory1
- Anderson, Rudolph J. (Rudolph John), 1879-19611
- Armagh Observatory1
- Astronomical Society of Pittsburgh1
- Astronomical observatories1
- Baldwin, Simeon E. (Simeon Eben), 1840-19271
- Ballads, English1
- Bandar Log Press1
- Barnard, Henry, 1811-19001
- Beers, Henry A. (Henry Augustin), 1847-19261
- Bestor, Arthur Eugene, 1908-19941