Published online by Cambridge University Press: 15 September 2014
The question of the existence of true transition resistance at the surface of certain electrodes in given liquids has been in debate for many years, but has never yet been conclusively settled. It is admitted universally that in certain cases such resistance does occur, as, e.g., when a non-conducting oxide is formed on the surface of the metal; but the point in dispute is whether or not it occurs when no direct chemical action takes place between the metal and the products of electrolysis, or between it and substances dissolved in the liquid.
Note.—In the Plate the point marked 1 corresponds to the first reading of the galvanometer for the curves a and c. The point o' is related to the curves b in the same way as o is to a and c.