See J. Bruce Brackenridge, "The key to Newton's dynamics: the Kepler problem and the Principia", (University of California Press, 1995), especially at pages 20–21.
Propositions 70 to 75 in Book 1, for example in the 1729 English translation of the Principia, start at page 263.
Propositions 43 to 45 in Book 1, in the 1729 English translation of the Principia, start at page 177.
See for example the 1729 English translation of the Principia, at page 66.
doi.org
See especially p. 13 in Whiteside, D. T. (1970). “Before the Principia: The Maturing of Newton's Thoughts on Dynamical Astronomy, 1664–1684”. Journal for the History of Astronomy. 1: 5–19. Bibcode:1970JHA.....1....5W. doi:10.1177/002182867000100103.
See especially p. 13 in Whiteside, D. T. (1970). “Before the Principia: The Maturing of Newton's Thoughts on Dynamical Astronomy, 1664–1684”. Journal for the History of Astronomy. 1: 5–19. Bibcode:1970JHA.....1....5W. doi:10.1177/002182867000100103.
See especially p. 10 in Whiteside, D. T. (1970). “Before the Principia: The Maturing of Newton's Thoughts on Dynamical Astronomy, 1664–1684”. Journal for the History of Astronomy. 1: 5–19. Bibcode:1970JHA.....1....5W. doi:10.1177/002182867000100103.
See especially p. 13 in Whiteside, D. T. (1970). “Before the Principia: The Maturing of Newton's Thoughts on Dynamical Astronomy, 1664–1684”. Journal for the History of Astronomy. 1: 5–19. Bibcode:1970JHA.....1....5W. doi:10.1177/002182867000100103.
See especially p. 13 in Whiteside, D. T. (1970). “Before the Principia: The Maturing of Newton's Thoughts on Dynamical Astronomy, 1664–1684”. Journal for the History of Astronomy. 1: 5–19. Bibcode:1970JHA.....1....5W. doi:10.1177/002182867000100103.
See especially p. 10 in Whiteside, D. T. (1970). “Before the Principia: The Maturing of Newton's Thoughts on Dynamical Astronomy, 1664–1684”. Journal for the History of Astronomy. 1: 5–19. Bibcode:1970JHA.....1....5W. doi:10.1177/002182867000100103.
