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Geometrical Investigations concerning the Phænomena of Terrestrial Magnetism: Second Series,--On the Number of Points at Which a Magnetic Needle Can Take a Position Vertical to the Earth's Surface. [Abstract]

Thomas Stephens Davies
Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London
Vol. 3 (1830 - 1837), pp. 368-371
Published by: Royal Society
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Page Count: 4
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