TY - JOUR T1 - Note on the Variations of Density Produced by Heat in Mineral Substances JF - Proceedings of the Royal Society of London (1854-1905) VL - 13 SP - 240 EP - 242 PY - 1863/01/01/ UR - http://dx.doi.org/10.1098/rspl.1863.0056 M3 - doi:10.1098/rspl.1863.0056 AU - Phipson, T. ER -