Books Received | Published:

(1) The Elements of Electricity and Magnetism. A Text-book for Colleges and Technical Schools (2) A Short University Course in Electricity, Sound and Light (3) Naturlehre für höhere Lehranstalten auf Schulerübungen gegrundet (4) The Elementary Theory of Direct Current Dynamo Electric Machinery (5) Electrical Laboratory Course for Junior Students

Nature volume 81, pages 6667 (15 July 1909) | Download Citation



(1) THE order in which the elements of electricity and magnetism are presented in the first volume ounder notice is:—(a) Electric current; (b) magnetism; (c) electrostatics; (d) electric waves. This order is one which does not make the exposition perfectly happy. Thus it does not seem natural when it is found necessary to refer provisionally to the measurement of currents by their magnetic effect (p. 7) prior to any statement as to how magnetic effects themselves are measured. Surely the natural order is to take magnetism before considering the electric current, even though it may be preferred to deal with both before considering the phenomena of electrostatics. The author passes naturally and easily to the exposition of the last-named phenomena, and as many prefer this order this portion may certainly be commended to them.

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