75. ----------------. Study of Catalytic Actions at Surfaces. II. Transference of Hydrogen From Saturated to Unsaturated Organic Compounds in the Liquid State in Presence of Metallic Nickel. Proc. Roy. Soc. (London), vol. 96-A, 1919, p. 322-329; Chem. Abs., vol. 14, 1920, pp. 884-885.

75. ----------------. [ARMSTRONG, E. F., AND HILDITCH, T. P.] Study of Catalytic Actions at Surfaces. II. Transference of Hydrogen From Saturated to Unsaturated Organic Compounds in the Liquid State in Presence of Metallic Nickel. Proc. Roy. Soc. (London), vol. 96-A, 1919, p. 322-329; Chem. Abs., vol. 14, 1920, pp. 884-885.