- Astrology, Turkish1
- Astrology--Religious aspects1
- Astrometeorology4
- Astronomical instruments18
- Astronomical literature2
- Astronomy113
- Astronomy in rabbinical literature2
- Astronomy, Ancient3
- Astronomy, Arab80
- Astronomy, Arab--Tables1
- Astronomy, Greek3
- Astronomy, Medieval14
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- Astronomy--Religious aspects--Islam1
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- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah48
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, d. 1265. Hidāyat al-ḥikmah5
- Atlantic Ocean--English Channel1
- Atlases6