An Extract of a Letter of Mr. James Gregory to the Publisher, Containing Some Considerations of His, upon M. Hugens His Letter, Printed in Vindication of His Examen of the Book, Entitled Vera Circuli & Hyperbola Quadratura

James Gregory
1668 Philosophical Transactions (1665-1678)  
fatcat:uxpqn7njnrgtjlpecs3esgraka