TY - JOUR T1 - Quaternions and Projective Geometry. JF - Proceedings of the Royal Society of London (1854-1905) VL - 71 SP - 177 EP - 178 PY - 1902/01/01/ UR - http://dx.doi.org/10.1098/rspl.1902.0081 M3 - doi:10.1098/rspl.1902.0081 AU - Joly, C. ER -