TY - JOUR T1 - A Letter from John Martyn, M. D. Prof. Botan. Cantab. & F.R.S. to the President, concerning an Aurora Borealis Seen February 16. 1749-50 JF - Philosophical Transactions (1683-1775) VL - 46 SP - 345 EP - 345 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1749.0067 M3 - doi:10.1098/rstl.1749.0067 AU - Martyn, J. ER -