TY - JOUR T1 - On the Intimate Structure of Crystals.--IV. Cubic Crystals with Octahedral Cleavage JF - Proceedings of the Royal Society of London (1854-1905) VL - 67 SP - 493 EP - 495 PY - 1900/01/01/ UR - http://dx.doi.org/10.1098/rspl.1900.0056 M3 - doi:10.1098/rspl.1900.0056 AU - Sollas, W. ER -