DEA RO SUI 2t TOY non via , exiftimare quifpiam poffit maculam B promo- tam loco non effe,aut etiam retroceffiffe. Quomodo euc- circa longitudinem $50, latitudinem vero Auftralem 30 comparens,die fequenti retroceffiffe videretur; neque vl- tra hoc biduum macula illa mihi confpet&a eft. Credibile,…
Astronomy -- Early works to 1800
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Isaaci Newtoni Optices libri tres: accedunt ejusdem lectiones opticae, et opuscula omnia ad lucem et colores pertinentia sumpta ex Transactionibus philosophicis / [Sir Isaac Newton]. (1773)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b30415561-107-1.webp)
