TY - JOUR T1 - Note on Professor Sylvester's Representation of the Motion of a Free Rigid Body by That of a Material Ellipsoid Whose Centre is Fixed, and Which Rolls on a Rough Plane JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 160 SP - 1 EP - 7 PY - 1870/01/01/ UR - http://dx.doi.org/10.1098/rstl.1870.0001 M3 - doi:10.1098/rstl.1870.0001 AU - Ferrers, N. ER -