Complete Works of Euclid, Vol. 7 (Optics and Catoptrics)

fol. 196—380 Catoptrica, Phaenomena, Optics, Data. Other mathematical works precede and follow, see Coxe I p. 276.

20. cod. Leidensis 7, paper, 16th century, concerning which see V p. CIV.

21. cod. Barberin. II, 81, paper, 15th century. It contains Catoptrica fol. 1—7, 32—35^r, Optics fol. 59^u—80^r; furthermore, without order, Phaenomena, Data, commentary on Cleomedes, and Hero’s Geodesy.

22. cod. Ambros. A 101 sup., concerning which see Apollon. II p. XII, except that I can now affirm that the codex is paper and from the 15th—16th century.

23. cod. Uindobon. suppl. 9, paper, 17th century; see Apollon. II p. XIII.

24. cod. Uindobon. Gr. 120, besides certain mechanical works, has on fol. 37—39^r fragments of the Catoptrica (definitions, props. 1, 3, 4, last) and of the Optics (props. 18—21).

25. cod. Toletan. Biblioth. Capitul. 98—13, paper, 16th century; see Graux et Martin, Notices p. 278. It contains Catoptrica, Phaenomena, Optics, Data.

26. cod. Uatic. Gr. 202, paper, 14th—15th century, see above p. VIII.

27. cod. Laurent. XXVIII, 10, paper, 15th century. It contains Data, Optics, Phaenomena.

28. cod. Marcian. 304, paper, 15th century. It contains Optics, Autolycus on the Moving Sphere, Theodosius on Habitats, on Days, Aristarchus, Autolycus on Risings, Hypsicles.

29. cod. Paris. Gr. 2351, paper, 16th century; copied by Constantinus Palaeocappa. It contains Phaenomena and, fol. 65—116, Optics.

30. cod. Paris. Gr. 2363, paper, 15th century. Among other mathematical and astronomical works (see Omont II p. 246—247)*) it has the Optics fol. 29^u—40^r.

31. cod. Paris. Gr. 2390, bombicyn, 13th century, = p; see above.

32. cod. Paris. Gr. 2472, paper, 14th century. Among other mathematical and astronomical works (see Omont II p. 266—267) it contains the Optics fol. 49—63.

I judge the estimation of these codices differently now than when, five years ago, I was reviewing the text of this volume; nor, when I was correcting the proofs on a journey without my papers, did I dare to undertake new efforts. Wherefore, certain matters must be retracted in this place.

*) Addendum, that a fragment (deff., propp. 1—4) of the Catoptrica exists on fol. 97 (ἐκ τῶν κατοπτρικῶν Εὐκλείδου).