TY - JOUR T1 - On Comparative Vegetable Chromatology JF - Proceedings of the Royal Society of London (1854-1905) VL - 21 SP - 442 EP - 483 PY - 1872/01/01/ UR - http://dx.doi.org/10.1098/rspl.1872.0090 M3 - doi:10.1098/rspl.1872.0090 AU - Sorby, H. ER -