Electro-Calorimetry

Abstract

IN a paper read at the British Association meeting at Bath, Messrs. Stroud and Haldane Gee describe the method used by them for heating the liquids under experiment. Will you allow me to point out that the series arrangement of the coils is electrically in unstable equilibrium, since any difference of temperature between the baths causes less power to be spent in the cooler one, thus tending to increase the difference. With the coils in parallel less power is spent in the hotter bath, but the method is still imperfect from the want of equality of heating at different temperatures.