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our knowledge of the whole domain of colloids. The metal soaps must not’ be regarded as exceptions t’o that rule. REFEREKCES (1) . ~ R V E S O S , &I.H.: Ind. Eng. Chem. 24, 71 (1932). ( 2 ROSER, C. J . : Inti. Eng. Chem. 29,58 (1937). (:3 I D E R ~ I C I AJ. S ,: Bull. soc. chim. biol. 28,419 (1946);Trans. Faraday Soc. 42, (1946). (41 DORCHER, T . XI.% ASU I-OLD, R . D.: J. Colloid Sci. 1,299 (1946). 1.5 i GAI.I.AY, W., ASU PCDDISGTOS, I . E. : Can. J. Research 24B, 73 (1946) and other papers. (6) GARLICK, 1%.P . : J. Iiist. PetroleumTechnol. 20, 829 (1934). (7) HARTLEY, G.Y.: Trans. Faraday Soc. 31, 183 (1935). (8) KOENIG,A.E . : J . Ani. Cliem. Soc. 36,951 (1914). (9) LAKRESCE,A.S.C.: Trans. Faraday Soc. 33,615 (1937); Ann. Repts. on Progress Cheni. (Chem. Soc. London1 37, 108 (1940). (10) LA\VRESCE, A. S.C . : J. Inst. Petroleum Technol. 24, 207 (1935). (11) LAU.RESCE, A. S. C.: Trans. Faraday Soc. 34. 325 (1338). (12) I,AJ\’RESCE, A.S.C.: Trans. Faraday Soc. 35, 702 (1939). (131 I , A W R E X ~ S.C.: E : , ~J.~Inst.l’etroleumTechnol.31,303 . (1945). S.S.:XIYSELS,I
