... difference in chemical composition of the liquid was attended by a considerable change in the order of the volta-tension series, and the differences of such order in two similar liquids, such as solutions of hydric chloride and potassic chloride, were much greater than those produced in either of those liquids by a difference of 100 deg. F. of temperature. Difference of strength of solution, like difference of composition or of temperature, altered the order of such ... — Scientific American Supplement, No. 443, June 28, 1884 • Various