TY - JOUR T1 - An Instrument for Grinding Section-Plates and Prisms of Crystals of Artificial Preparations Accurately in the Desired Directions. JF - Proceedings of the Royal Society of London (1854-1905) VL - 55 SP - 108 EP - 110 PY - 1894/01/01/ UR - http://dx.doi.org/10.1098/rspl.1894.0018 M3 - doi:10.1098/rspl.1894.0018 AU - Tutton, A. ER -