Third Volume - Commentary on John of Holywood's Spheres - I - Page 20 Third Volume - Commentary on John of Holywood's Spheres - I - Page 21
Third Volume - Commentary on John of Holywood's Spheres - I - Page 19



Third Volume - Commentary on John of Holywood's Spheres - I - Page 20 Third Volume - Commentary on John of Holywood's Spheres - I - Page 21 Third Volume - Commentary on John of Holywood's Spheres - I - Page 22