Figure II.5
Columbia University in the City of New-York. The Library of the late George A. Plimpton
Plimpton 158  fol. 1.verso  Euclides, Elementa, book II, propositions 3-7; ennunciations in the form of Adelard of Bath, second version, in the revised and expanded translation of Campanus of Novara,
Parchment; 296 x 192. Germany.  s. XIV                         α             Σ