首页 / 官方藏书 / Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics / CHAP. XVIII. Of Eclipses: Their Number and Periods. A large Catalogue of Ancient and Modern Eclipses.
首页 / 官方藏书 / Astronomy Explained Upon Sir Isaac Newton's Principles / And made easy to those who have not studied mathematics / CHAP. XVIII. Of Eclipses: Their Number and Periods. A large Catalogue of Ancient and Modern Eclipses.