Original Format: book; in this copy the treatise in 10 chapters is followed by a concise commentary; a title is not included into the copy's colophon; the scribe names himself in the dated colophon; references: Brockelmann S II, p. 1020 s.v. #33; D. A . King, Survey of the Scientific Manuscripts in the Egyptian National Library (Winona Lake, Ind., 1986), p. 162 s.v. G77
The treatise is written on laid paper with visible regular chainlines, but the flyleaves are machine-made wove paper; rubrication; diagrams; binding is not contemporary with the textblock