TY - JOUR T1 - Memoir on the Integration of Partial Differential Equations of the Second Order in Three Independent Variables When an Intermediary Integral Does Not Exist in General JF - Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Math. or Phys. Character (1896-1934) VL - 191 SP - 1 EP - 86 PY - 1898/01/01/ UR - http://dx.doi.org/10.1098/rsta.1898.0001 M3 - doi:10.1098/rsta.1898.0001 AU - Forsyth, A. ER -