in. the medium; they were satisfied that Now bring the unpapered end of the rod up to they had found it in a power of action at a distance im- various latitudes, and its general truth is established. The the magnetometer vast luminous rods, which are often 500 miles and over in and repeat the above… … Thomson, " one of the most bril- where near the north geographic Fig. 27.—magnetic CURVES UNLIKE MAGNETIC POLES OPPOSITE EACH OTHER, liant steps made in philosophical pole, and with its north magnetic pole placed somewhere near the exposition of which any instance Mathematicians length, actually…
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