The Extant Greek Works of Apollonius of Perga, Vol. II

There it was immediately copied as cod. 14. Paris. 2356 For on fol. 135r (at the end of the Conics) and fol. 137 it has these words: "Read through at Orléans, March 15, 1551," written by the hand of the mathematician Petrus Montaureus of Orléans (see Cuissard, L’étude du Grec à Orléans p. 111), who without doubt ordered his own codex to be copied for his use in that very year, and read through and corrected it once copied, as was his habit. I conclude that cod. 14 was copied from cod. 15 from these places: I p. 6, 15: $τε$ and] omitted by codd. 14, 15 alone (except for cod. 13, about which I shall speak shortly), I p. 218, 5: $τ o\acute{υ}τ oν$ this [masc.]] $τ o\acute{υ}των$ of these cod. 14 (and 13), because cod. 15 has $τ oυ\varsigma'$ these [acc. pl.] (thus also besides V are codd. 2, 3, 4, but cod. 14 cannot have been copied from there, since in fig. II, 32 it does not have the N).

Montaureus added both his corrections and his annotations in the margins in many places, of which I will bring forward a few as a specimen:

1. at I def. 6 margin: "on the opposites in the 16th [proposition] of the 1st [book] on the ellipse in the 45th of the 2nd [book] at the end."
2. I, 5 p. 20, 1 margin: "it is missing; it is [equal] to the rectangle contained by KZH; but the rectangle contained by EZΔ, that is the rectangle contained by ΔZ, ZE, is equal." Then deleted: "for the angle under HΘK etc."
3. I, 22 p. 76, 8 after Γ, Δ he inserted in the margin: "not falling within the diameter."
4. I, 33 p. 98, 25 after "let it be drawn down" katachthe margin: "straight line."
5. I, 39 p. 120, 9 after "and" margin: "from that which it has."
6. I, 41 p. 128, 9 after ΔH margin: "the area therefore from ΔE, the figure similar to ΛZ."
7. I, 45 p. 138, 2 after ΓΔ margin: "on the second diameter."
8. I, 45 p. 136, 17: "by them through which the vertical line to the center cuts the triangle, on the hyperbola [it is] greater" cod. 14, Montaureus, having deleted "through" and "on the hyperbola," inserted in the margin after "by them": "the triangle on the hyperbola."
9. I, 54 p. 168, 29 margin he adds: "it is cut therefore by a plane at right angles to the ZHΘ triangle and makes as a section the HΠΘP circle"; p. 170, 3 after "the underlying [plane]" margin he adds: "cutting the base of the cone."
10. I, 55 p. 172, 22 margin: "it is missing; and they will be able [to form] the rectangles applied to ΛN."
11. I, 56 p. 180, 5—6: "BE to EZ [as] BK to KΘ" cod. 14, Witnessed by Henri Omont, a man most skilled in these matters.