The Correspondence of Isaac Newton. Volume V. 1709-1713. Edited by A. Rupert Hall and Laura Tilling. Published for the Royal Society at the University Press Cambridge. 1975. Quarto. li, 439pp. Frontispiece. All edges sprinkled red. a fine copy in the original burgundy cloth, gilt vignette to upper board, blue and gilt lettered label to spine. In the original dust wrapper, near fine with a short closed tear to lower edge. From a bibliographical point of view this period of almost four years was the most important period in Newton's life, since in this time he revised his Philosophiae Naturalis Principia Mathematica and saw it through the press. The Newton-Cotes correspondence is the largest and most important section of Newton's scientific correspondence that we have. During this period Newton's relationship with Flamsteed became more painful to the point that by December 1710 it was no longer the case that Flamsteed was charged with failing Newton, he was blamed for failing the nation. Newton's letters with regard to the Mint reveal conscientious attention to every detail of government business. He ran virtually every aspect of its operations.