Astronomy Explained Upon Sir Isaac Newton's PrinciplesNote 72 — CHAP. XVIII. Of Eclipses: Their Number and Periods. A large Catalogue of Ancient and Modern Eclipses.Reading editionBefore Christ 168, June 20.◇Copy noteReturn to CHAP. XVIII. Of Eclipses: Their Number and Periods. A large Catalogue of Ancient and Modern Eclipses.