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- Astronomy--Addresses, essays, lectures (13)
- Astrophysics--Addresses, essays, lectures (3)
- Aeronautics--Addresses, essays, lectures (1)
- Geodesy--Addresses, essays, lectures (1)
- Geology--Addresses, essays, lectures (1)
- Geophysics--Addresses, essays, lectures (1)
- Hale, George Ellery, 1868-1938 (1)
- Kopal, Zdeněk, 1914- (1)
- Meteorology--Addresses, essays, lectures (1)
- Southern sky (Astronomy)--Addresses, essays, lectures (1)