Seneca the Elder — 12th century; English

John Somer — 14th century, end; English

This composite manuscript is famous for its second part, which contains the earliest copy of the Chanson de Roland. Written in…

Deusdedit (d. 1099), etc. — c. 1100; Italian, Central

Ps.-Ptolemy — 13th century, beginning (?) (after 1147); English

Philo of Byzantium, Ps.-Euclid, etc. — 13th century, beginning; English

Roger of Hereford — 13th century, first half (?) or between 1177 and 1182 (?); English

Abraham ibn Ezra — 12th century, second half; English

Alfraganus, etc. — 13th century, beginning; English

Albategni — 12th century, end; English

Albategni, Hermannus Contractus, etc. — 12th century, second half; Italian

Bernard de Gordon — 14th century; English

Ps.-Boethius, Horace, etc. — 13th century, beginning; English

Gerland, etc. — c. 1164–1168 (?); English

Opusculum de ratione spere; England, 12th century, middle

Boethius — 12th century, first half; English

Ps.-Johannes Scottus Eriugena — 12th century; English

Euclid, Ahmed ibn Yusuf, etc. — 13th century, first half to late; English

Treatises on proportions — 13th century, beginning; English

Hermannus Contractus — 12th century; English

Treatise on logic — 12th century, third quarter; English

Sermon notes — 14th century; English