Subject
- Astronomy Early works to 18001
- Astronomy Textbooks1
- Astronomy – Early works to 18001
- Astronomy – Tables1
- Astronomy, Medieval1
- Astronomy--Medieval--Sources1
- Astronomy--Tables--Early works to 18001
- Atlases, Belgian1
- Atlases, Belgian--Early works to 18001
- Atrytone arogos1
- Augustine, Saint, Bishop of Hippo--Manuscripts--Facsimiles1
- Authors, American -- 19th century1
- Automeris1
- Automeris io1
- Bald Cypress Sphinx1
- Banded Sphinx1
- Banded Tiger Moth1
- Banded Tussock Moth1
- Belleforest, François de, 1530-1583.1
- Besma quercivoraria1