TY - JOUR T1 - On Symbolic Forms Derived from the Conception of the Translation of a Directed Magnitude JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 142 SP - 161 EP - 206 PY - 1852/01/01/ UR - http://dx.doi.org/10.1098/rstl.1852.0013 M3 - doi:10.1098/rstl.1852.0013 AU - O'Brien, M. ER -