TY - JOUR T1 - Extract of Two Letters from Dr. Alston, Bot. Prof. at Edinburgh, to Dr. Mortimer, Secr. R. S. The First Dated 17 March, 1749; The Second, August 9, 1750 JF - Philosophical Transactions (1683-1775) VL - 47 SP - 265 EP - 266 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1751.0040 M3 - doi:10.1098/rstl.1751.0040 AU - Alston, C. ER -