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Yes: our compass was no longer a guide; the needle flew from pole to / pole with a kind of frenzied impulse; it ran round the dial, and spun / hither and thither as if it were giddy or intoxicated.
I knew quite well that according to the best received theories the / mineral covering of the globe is never at absolute rest; the changes / brought about by the chemical decomposition of its component parts, / the agitation caused by great liquid torrents, and the magnetic / currents, are continually tending to disturb it -- even when living / beings upon its surface may fancy that all is quiet below. A / phenomenon of this kind would not have greatly alarmed me, or at any / rate it would not have given rise to dreadful apprehensions.