Complete Works of Euclid, Vol. 6 (Optics, Catoptrics, etc.)

old [fols.] 103—111r with scholia. — c) Phaenomena prop. 1—3 and part of the 4th (ending: τῶν ἀεὶ φανερῶν ὁ αδε), fols. 111—112. — d) Marinus on the Data, fols. 113—114. — e) Data, fols. 114v—129. — f) Heron, On Measures, fols. 130—132 (ending: ἡ ἄκενα ἔχει πόδας β). — g) Ptolemy, Syntax I—XIII, fols. 137—323r (for fols. 133—136 are missing). — h) Various writings of Ptolemy, fols. 323v—384 (fols. 334—335, 336r, 351 are blank); on fols. 384v in the middle the Apotelesmata end abruptly (τοῦ ἡλίου πρὸς τά). The whole codex is written by the same elegant hand of a practiced calligrapher, with few abbreviations, which are used almost only in the final lines. I collated it myself.

M — Munich codex 427, bombycine paper. It contains Hypsicles' book on fols. 234—240 (there follows on fols. 241—244 a fragment of Marinus on the Data), which part of the codex is attributed by Friedlein to the 12th—13th century (preceded by fols. 1—233, Proclus' commentaries on the Elements, 11th—12th century according to the same Friedlein in his edition of Proclus, p. 1); cf. Hardt I^4 p. 318; I have not seen the codex myself. From this codex, Friedlein edited Hypsicles' book in Bullettino Boncompagni VI p. 493 sq., the collation of which I have used.*)

*) Although Friedlein in his notes is accustomed to cite the readings of the Oxford edition, there are places where he silently offers a different reading in the text, perhaps following the Munich codex; but since this is not certain, I have relegated his reading to the notes in those places, adding his name.