TY - JOUR T1 - X-Ray Analysis of the Crystal-Structure of Rutile and Cassiterite JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 93 IS - 653 SP - 418 EP - 427 PY - 1917/08/01/ UR - http://dx.doi.org/10.1098/rspa.1917.0028 M3 - doi:10.1098/rspa.1917.0028 AU - Williams, C. ER -