TY - JOUR T1 - An Extract of a Letter Sent from Paris, about the Load-Stone; Where Chiefly the Suggestion of Gilbert Touching the Circumvolution of a Globous Magnet, Call'd Terrella; And the Variation on of the Variation, is Examined JF - Philosophical Transactions (1665-1678) VL - 2 SP - 527 EP - 531 PY - 1753/01/01/ UR - http://dx.doi.org/10.1098/rstl.1666.0041 M3 - doi:10.1098/rstl.1666.0041 ER -