TY - JOUR T1 - A Comparative Crystallographical Study of the Double Selenates of the Series R$_{2}$M(SeO$_{4}$)$_{2}$,6H$_{2}$O--Salts in Which M Is Magnesium. JF - Proceedings of the Royal Society of London (1854-1905) VL - 68 SP - 322 EP - 323 PY - 1901/01/01/ UR - http://dx.doi.org/10.1098/rspl.1901.0049 M3 - doi:10.1098/rspl.1901.0049 AU - Tutton, A. ER -