The author studied on the haemolytic action of the electric current upon the red blood corpuscles of rabbits, suspended in the 0.9% NaCl solution.
He confirmed the following facts. 1) Red blood corpuscles were haemolysed only by the constant current, but never by the alternating current, if the alternation is sufficiently frequent. 2) In regard to the relationship between the strength of the electric current and its duration holds good the Weiss-Hoorweg's formula for the excitation of muscle and nerve. 3) It is highly probable that the alkalinity, which has been produced in the neighbourhood of the negative Pole, plays the important rôle on the electrical haemolysis.