TY - JOUR T1 - On the Action of a Secretion Obtained from the Medicinal Leech on the Coagulation of the Blood JF - Proceedings of the Royal Society of London (1854-1905) VL - 36 SP - 478 EP - 487 PY - 1883/01/01/ UR - http://dx.doi.org/10.1098/rspl.1883.0135 M3 - doi:10.1098/rspl.1883.0135 AU - Haycraft, J. ER -