On M. Mercadier's Test of the Relative Validity of the Electrostatic and Electromagnetic Systems of Dimensions

Abstract

IN connection with the clear exposition of the true dimensions of electrical units given by Prof. Rücker in NATURE of the 22nd ult. it is well to bear in mind that Maxwell long before the publication of his book, namely, in the first report to the British Association on electrical standards (see report of the Newcastle meeting of the Association in 1863, p. 160) called attention, in a “Note on the Table of Dimensions,” to the provisional character of the electrostatic and electromagnetic series recommended by the committee, and since widely adopted.