books.google.com.br - This fourth and final volume of The Collected Papers of Sir William Rowan Hamilton (1805 1865) contains three previously unpublished and important manuscripts, namely Systems of Rays and two lengthy letters to de Morgan (on definite integrals) and Hart (on anharmonic coordinates). In addition the volume...https://books.google.com.br/books/about/The_Mathematical_Papers_of_Sir_William_R.html?id=xbuyQvb5-TAC&utm_source=gb-gplus-shareThe Mathematical Papers of Sir William Rowan Hamilton: Volume 4, Geometry, Analysis, Astronomy, Probability and Finite Differences, Miscellaneous