Thefirst three sections of Newton's Principia with an appendix, and the ninth and eleventh sections. Edited by John H. Evans. This book, "Thefirst three sections of Newton's Principia", by I. Newton, is a replication of a book originally published before 1843. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.