Experiments, by the Method of Lorentz, for the further Determination of the Absolute Value of the British Association Unit Resistance, with an Appendix on the Determination of the pitch of a Standard Tuning-Fork. Received December 8, 1882, - Read Janu.

(London, Harrison and Sons, 1884). 4to. No wrappers as extracted from "Philosophical Transactions" Year 1883, Volume 174. - Pp. 295-322. Textillustr. Clean and fine. First printing of an importent paper in the search for determining the value of the Ohm."In the third phase (in the standardization of electrical units), ayleigh employed a method for determining the value of the Ohm introduced by L. Lorentz in 1873. This method, Rayleigh found, possessed the importent advantage of producing results that weree free of the influence of terrestrial magnetism and of thermoelectrical effects. Rayleigh modified Lorentz' method to make it more efficient, but without altering its essential character."(Dong-Won Kim).