Abstract
THIS book is intended to be an elementary manual for a laboratory course in practical electricity. It contains instructions for carrying out a number of experiments designed to illustrate the principles of magnetism and electricity. The course is largely modelled on that given by Prof. Ayrton at the City and Guilds Institute. The experiments are well chosen, and the description and instructions seem to us adequate. The student is shown how to tabulate and set out his results, and some useful hints are given to teachers of elementary science as to the conduct of a laboratory class. We notice in one of the experiments the old fallacy of “proving” Ohm's law by a method in which P.D.'s are measured with an electromagnetic voltmeter; it is remarkable how hard this fallacy is to kill. Apart from this and a few minor blemishes, Mr. Belcher's book is a useful little manual.
Practical Electricity.
By J. Hope Belcher. Pp. xi + 165. (London: Allman and Son, Ltd., 1902.) Price 2s. 6d.
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S., M. Practical Electricity . Nature 67, 149 (1902). https://doi.org/10.1038/067149c0
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DOI: https://doi.org/10.1038/067149c0