TY - JOUR T1 - On the Reappearance of Some Periods of Declination Disturbance at Lisbon during Two, Three, or Several Days JF - Proceedings of the Royal Society of London (1854-1905) VL - 17 SP - 238 EP - 239 PY - 1868/01/01/ UR - http://dx.doi.org/10.1098/rspl.1868.0036 M3 - doi:10.1098/rspl.1868.0036 AU - Capello, S. ER -