The Metalogicon of John of Salisbury [EPUB ebook] 
A Twelfth-Century Defense of the Verbal and Logical Arts of the Trivium

This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1955.