TY - JOUR T1 - Researches on Vanadium.--Part III. Preliminary Notice JF - Proceedings of the Royal Society of London (1854-1905) VL - 18 SP - 316 EP - 321 PY - 1869/01/01/ UR - http://dx.doi.org/10.1098/rspl.1869.0069 M3 - doi:10.1098/rspl.1869.0069 AU - Roscoe, H. ER -