TY - JOUR T1 - New Researches on the Dispersion of the Optic Axes in Harmotome and Wohlerite, Proving These Minerals to Belong to the Clinorhombic (Oblique) System. JF - Proceedings of the Royal Society of London (1854-1905) VL - 16 SP - 319 EP - 321 PY - 1867/01/01/ UR - http://dx.doi.org/10.1098/rspl.1867.0064 M3 - doi:10.1098/rspl.1867.0064 AU - Cloiseaux, M. ER -