Aquinas: Opera omnia 15

This is a reprint of S. Thomae Aquinatis opera omnia iussu impensaque Leonis XIII p. m. edita, i.e., the Leonine Edition. The text is in the public domain. It has been scanned, the images converted to black and white, and the page size reduced for printing by Lulu. There is some loss of quality from the original. This is volume 15, containing the Summa contra gentiles, Book IV with the commentary of Francesco Silvestri. http://leonine-reprints.ipsissima-verba.org/