TY - JOUR T1 - Experiments and Observations on the Various Alloys, on the Specific Gravity, and on the Comparative Wear of Gold. Being the Substance of a Report Made to the Right Honourable the Lords of the Committee of Privy Council, Appointed to Take into Consideration the State of the Coins of This Kingdom, and the Present Establishment and Constitution of His Majesty's Mint JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 93 SP - 43 EP - 194 PY - 1803/01/01/ UR - http://dx.doi.org/10.1098/rstl.1803.0005 M3 - doi:10.1098/rstl.1803.0005 AU - Hatchett, C. ER -