TY - JOUR T1 - An Observation of the Lights Seen in the Air, an Aurora Australis, on March 18. 1738-9. at London, by Cromwell Mortimer, M. D. Secr. to the Royal Society JF - Philosophical Transactions (1683-1775) VL - 41 SP - 839 EP - 840 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1739.0153 M3 - doi:10.1098/rstl.1739.0153 AU - Mortimer, C. ER -