TY - JOUR T1 - On the Mathematical Theory of Stream-Lines, Especially Those with Four Foci and Upwards JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 161 SP - 267 EP - 306 PY - 1871/01/01/ UR - http://dx.doi.org/10.1098/rstl.1871.0011 M3 - doi:10.1098/rstl.1871.0011 AU - Rankine, W. ER -