Third Volume - Commentary on John of Holywood's Spheres - IV - Page 290 Third Volume - Commentary on John of Holywood's Spheres - IV - Page 291
Third Volume - Commentary on John of Holywood's Spheres - III - Page 289



Third Volume - Commentary on John of Holywood's Spheres - IV - Page 290 Third Volume - Commentary on John of Holywood's Spheres - IV - Page 291 Third Volume - Commentary on John of Holywood's Spheres - IV - Page 292