TY - JOUR T1 - Note on a New Form of Light Plane Mirrors JF - Proceedings of the Royal Society of London (1854-1905) VL - 64 SP - 440 EP - 442 PY - 1898/01/01/ UR - http://dx.doi.org/10.1098/rspl.1898.0125 M3 - doi:10.1098/rspl.1898.0125 AU - Mallock, A. ER -