TY - JOUR T1 - Account of Experiments Made at Holyhead (North Wales) to Ascertain the Transit-Velocity of Waves, Analogous to Earthquake Waves, through the Local Rock Formations JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 151 SP - 655 EP - 679 PY - 1861/01/01/ UR - http://dx.doi.org/10.1098/rstl.1861.0028 M3 - doi:10.1098/rstl.1861.0028 AU - Mallet, R. ER -