TY - JOUR T1 - Observations on the Upper Partial Tones of a Pianoforte String, Struck at One-Eighth of Its Length JF - Proceedings of the Royal Society of London (1854-1905) VL - 38 SP - 83 EP - 85 PY - 1884/01/01/ UR - http://dx.doi.org/10.1098/rspl.1884.0071 M3 - doi:10.1098/rspl.1884.0071 AU - Hipkins, A. ER -