TY - JOUR T1 - An Account of an Unusual Agitation in the Magnetical Needle, Observed to Last for Some Time, in a Voyage from Maryland, by Capt. Walter Hoxton; Communicated in a Letter to David Papillon, Esq; F. R. S. JF - Philosophical Transactions (1683-1775) VL - 37 SP - 53 EP - 54 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1731.0009 M3 - doi:10.1098/rstl.1731.0009 AU - Hoxton, W. ER -