TY - JOUR T1 - Part of a Letter from Monsieur Claud. Joseph Geoffroy, F. R. S. to David Hartley, M. A. F. R. S. Containing His Method of Making Soap-Lees and Hard Soap, for Medicinal Uses JF - Philosophical Transactions (1683-1775) VL - 42 SP - 71 EP - 77 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1742.0025 M3 - doi:10.1098/rstl.1742.0025 AU - Geoffroy, C. ER -