Commentary on the First Book of Euclid's Elements

B₂ = Codex 101 of the Barberina library, 15th century, which contains the first sixteen pages of the Hervagius edition, up to the word διανοητικὴν discursive/intellectual on page 16, line 21 from the bottom.

B₃ = Codex 145 of the Barberina library, 16th century, written by two scribes, of whom the first wrote folios 1–158, the other folios 159–200.

A = ΕΥΚΛΕΙΔΟΥ ΣΤΟΙΧΕΙΑ Euclid's Elements, edited by E. F. August (part one, pages 290–293, 307–308), Berlin 1836.

N = Die Algebra der Griechen The Algebra of the Greeks. By Dr. G. H. F. Nesselmann, Berlin 1842.

Kn. I = Exposition of the fourth definition from the commentaries of Proclus successor on Euclid's elements, concerning the straight line and spiral sections, commented upon by I. H. Knoche and F. I. Maerker, Herford 1856.

Kn. II = Investigations on Proclus Diadochus's commentary on Euclid's Elements by Dr. J. H. Knoche, Herford 1862.

Kn. III = Investigations on the newly discovered scholia of Proclus Diadochus to Euclid's Elements by Dr. Joachim Heinrich Knoche, senior teacher and co-rector, Herford 1865.

H₁ = On Proclus. Dresden. Fr. Hultsch, (Rhenish Museum for Philology. New Series. Nineteenth Year. Frankfurt am Main 1864, pp. 450–455).

H₂ = Relics of the geometric and stereometric works of Heron of Alexandria, edited by Fridericus Hultsch, Berlin 1864.

T = The philosophical and mathematical commentaries of Proclus on the first book of Euclid's elements. In two volumes. London, printed for the author (T. Taylor) 1792.