Frontmatter
Book One
Chapter 1 The Universe is spherical; Chapter 2 The Earth too is spherical
Chapter 3 How Earth forms a single sphere with water
Chapter 4 The motion of the heavenly bodies is uniform, eternal, and circular or compounded of circular motions
Chapter 5 Does circular motion suit the Earth? What is its position?
Chapter 6 The immensity of the heavens compared to the size of the Earth
Chapter 7 Why the ancients thought that the Earth remained at rest in the middle of the universe as its center
Chapter 8 The inadequacy of the previous arguments and a refutation of them
Chapter 9 Can several motions be attributed to the Earth? The center of the universe
Chapter 10 The order of the heavenly spheres
Chapter 11 Proof of the Earth's triple motion
Chapter 12 Straight lines subtended in a circle
Chapter 13 The sides and angles of plane rectilinear triangles
Chapter 14 Spherical triangles
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55.Folio 21 verso
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58.Folio 23 recto
59.Folio 23 verso
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61.Folio 24 verso
62.Folio 25 recto
63.Folio 25 verso
64.Folio 26 recto
65.Folio 26 verso
66.Folio 27 recto
Book Two
Book Three
Book Four
Book Five
Book Six