TY - JOUR T1 - On the Direct Guaiacum Reaction given by Plant Extracts JF - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934) VL - 84 IS - 569 SP - 121 EP - 124 PY - 1911/07/20/ UR - http://dx.doi.org/10.1098/rspb.1911.0056 M3 - doi:10.1098/rspb.1911.0056 AU - Wheldale, M. ER -