TY - JOUR T1 - Extract of a Letter from M. Geoffroy, Chemist, Member of the Royal Academy of Sciences at Paris, and F. R. S. to Sir Hans Sloane, Bart. President of the Royal Society; Concerning Mr. Seignette's Sal Polychrestus Rupellensis, and Some Other Chemical Salts. By T. S. M. D. JF - Philosophical Transactions (1683-1775) VL - 39 SP - 37 EP - 40 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1735.0008 M3 - doi:10.1098/rstl.1735.0008 AU - Geoffroy, M. AU - S., T. ER -