TY - JOUR T1 - Observations on the Changes Which have Taken Place in Some Antient Alloys of Copper JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 116 SP - 55 EP - 59 PY - 1826/01/01/ UR - http://dx.doi.org/10.1098/rstl.1826.0007 M3 - doi:10.1098/rstl.1826.0007 AU - Davy, J. ER -