TY - JOUR T1 - Researches on the Theory of Vortex Rings. II. JF - Proceedings of the Royal Society of London (1854-1905) VL - 38 SP - 447 EP - 449 PY - 1884/01/01/ UR - http://dx.doi.org/10.1098/rspl.1884.0124 M3 - doi:10.1098/rspl.1884.0124 AU - Hicks, W. ER -