TY - JOUR T1 - Physical Properties of Nickel Steel JF - Proceedings of the Royal Society of London (1854-1905) VL - 47 SP - 138 EP - 139 PY - 1889/01/01/ UR - http://dx.doi.org/10.1098/rspl.1889.0075 M3 - doi:10.1098/rspl.1889.0075 AU - Hopkinson, J. ER -