Alhazen, v. [ibn al-Haitham].
Alî, [2] sq., [22], [33], [73], [85].
Alî, the Almoravid, [176].
abu Alî, v. [ibn Sinâ].
abu Alî Isâ ibn Ishâq ibn Zura, [19].
Anaxagoras, [22], [52], [59], [78].
Apollonius of Tyana, [175].
Aristotle, [13], [15]–18, [21]–28, [58], [72], [78], [89], [98], [104], [106], [109] sq., [117], [121] sq., [127] sq., [130], [132]–135, [149] sq., [159], [170], [187]–190, [194]–197, [200], [203], [209], [211], [213].
Aryabhata, [146].