TY - JOUR T1 - The Theory of Free Stream Lines. JF - Proceedings of the Royal Society of London (1854-1905) VL - 47 SP - 129 EP - 133 PY - 1889/01/01/ UR - http://dx.doi.org/10.1098/rspl.1889.0073 M3 - doi:10.1098/rspl.1889.0073 AU - Michell, J. ER -