TY - JOUR T1 - Part of a Letter from Mr. John Ray, F.R S. to Dr. Sloane, Dated June 30 1697. Communicating Two Observations, the One Concerning the Effects of a Poysonous Root, the Other concerning the Vertues of the Leaves of Hemlock JF - Philosophical Transactions (1683-1775) VL - 19 SP - 634 EP - 636 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1695.0113 M3 - doi:10.1098/rstl.1695.0113 AU - Ray, J. ER -