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

corrected, ff. 353—354 (paper) Archimedes, On Bodies Floating in Water. I collated it myself.

Vat.¹ = Vatican codex Gr. 1039, paper, 15th century. It contains Elements books XIV—XV, Optics up to p. 118, 10, Phenomena (ending: ἴσαι περιφέρειαι αἱ δὲ ἑξ. λέγω, ὅτι). I inspected certain passages.

m = Marcian codex Gr. 303, bombycine, 14th century, concerning which see Vol. V p. VIII. I transcribed it at Venice in 1881.

A = Ambrosian codex A 92 sup., five fragments of different codices*), the last of which (ff. 139—142, paper, 15th century) contains four folios of minimal format of the Optics, p. 78, 11 πρός — 82, 14, p. 86, 9 ὀρθάς — 90, 3 ἐάν, p. 104, 16 ἄρα — 110, 3, p. 112, 5 ἀκτίνων — 116, 2 τῆς. Henricus Menge collated it.

D = Dresden codex lat. Db 86, parchment, 14th century, concerning which see Curtze, Zeitschr. f. Math. u. Phys. XXVIII, hist. Abth. p. 1 sqq. From this (ff. 111—122^r) I have taken the Latin translation, in editing which I have neglected the orthography of the codex, except in the Greek words,

*) Cf. Rivola, Vita di Federico Borromeo p. 314: He began this collection of his from a gathering of books which he, Federico, while residing in Rome, moved by a magnanimous spirit, had collected and bought in the public squares. It had come to his ears that many books, both printed and manuscript, were from time to time exposed by the rude and ignorant rabble in public upon benches or tables to be sold as if of little value to any shopkeeper for wrapping or for other service of his merchandise, and it displeased him so much to learn that those works were subjected to such a miserable and unhappy fate ... that ... he ordered one of his retainers to roam the whole city from time to time for his own pleasure and to buy such books, notwithstanding that they were ruined by antiquity ..., and to have them brought home.