TY - JOUR T1 - A New Method of Computing the Sums of Certain Series; By Mr. John Landen: Communicated by Mr. Thomas Simpson, F. R. S. JF - Philosophical Transactions (1683-1775) VL - 51 SP - 553 EP - 565 PY - 1759/01/01/ UR - http://dx.doi.org/10.1098/rstl.1759.0056 M3 - doi:10.1098/rstl.1759.0056 AU - Landen, J. AU - Simpson, T. ER -