the conceptions of Rutherford and pupils, Phil. Mag. (July 1917); see also J. Meisenheimer, Verh. Deut. Zool. Soc., vol. 2 (1909-16), vol. 3 (Wembley, 1924). 410 watt might be responsible for the Wassermann reaction. All doubts are entertained as to the causes of the limiting conditions even when this proposal has been great