TY - JOUR T1 - On the Relation between Tropical and Extra-Tropical Cyclones JF - Proceedings of the Royal Society of London (1854-1905) VL - 43 SP - 1 EP - 30 PY - 1887/01/01/ UR - http://dx.doi.org/10.1098/rspl.1887.0108 M3 - doi:10.1098/rspl.1887.0108 AU - Abercromby, R. ER -