The Principia’s second law (as Newton understood it) from Galileo to Laplace Bruce Pourciau OriginalPaper 26 November 2019 Pages: 183 - 242
A proto-Normal Star Almanac dating to the reign of Artaxerxes III: BM 65156 John Steele OriginalPaper 02 January 2020 Pages: 243 - 253
Borelli’s edition of books V–VII of Apollonius’s Conics, and Lemma 12 in Newton’s Principia Andrea Del CentinaAlessandra Fiocca OriginalPaper 10 January 2020 Pages: 255 - 279