Keywords: John Collins Commercium Epistolicum.png en Frontpage of Commercium Epistolicum 1712 by John Collins 1625-1687 published under auspices of the Royal Society ca Portada del Commercium Epistolicum 1712 de John Collins 1625-1687 publicat sota els auspicis de la Royal Society 2014-05-24 09 35 44 Google books http //books google cat/books id r1BCoilZ3PwC John Collins 1625-1683 Custom license marker 2014 05 24 PD-old-100 Uploaded with UploadWizard Mathematicians from England Accountants Mathematics book covers John Collins |