Book m1 into 77 chapters. The collation given by Davies is imper-

fect and often wrong.
R. The Roman edition of 1471 of the Opera Philosophica. Vol. 1 contains the V. D.: there are two copies of it in the British Museum, in one of which (N. 720, 1. 6) a folio, containing 1 25 § 69 effugeret to 1 27 § 77 eodem modo, is wanting, but the other (C. i. c. 11) is perfect. It was printed by Sweynheym and Pannartz, as the lines declare at the end of the Cato Maior; “ Hoc Conradus opus Suuenheym ordine Miro Arnoldusque simul Pannartz una aede colendi Gente Theotonica: Rome expediere sodales.” Then follows the date “Anno Xpt MCCCCLXAXTI die vero xxvii mensis Aprilis Rome in domo magnifict viri Petri de Maximo.” The text is gene- rally very good, many of the best readings in the edition of Hervag (Basle, 1534), praised by Moser and Creuzer, seem taken from it, and many of the conjectures attributed to Lambinus may be already found there. It was probably printed from the ms in the
45 PREFACE TO THE COLLATIONS.
Vatican called La. by Moser, or from some ms from which La. was derived, hence the reading Antenulus for a nonnullis in 1 § 53, &e.