TY - JOUR T1 - On Measurements of Small Strains in the Testing of Materials and Structures JF - Proceedings of the Royal Society of London (1854-1905) VL - 58 SP - 123 EP - 142 PY - 1895/01/01/ UR - http://dx.doi.org/10.1098/rspl.1895.0018 M3 - doi:10.1098/rspl.1895.0018 AU - Ewing, J. ER -