INDEX 373 zation, etc. Compt. rend. 163, 1071 (1912); (2) A General Relation Between the Physical Properties of a Substance: Applic. to Densities. Compt. rend. 153, 871 (1912); 3 pp. GAZETTI, C. The Influence of Alkali Salts on the Viscosity of Proteins. Arch, di Fis. 11, 173 (1913). GBOFFBOY, L- Sur les resistances qu'e"prouve une surface mobile de la part cTun milieu fluide dans lequel elle se meut. Ann. de T^cole norm. (2) 7, 215 (1878); 12 pp.; Compt. rend. 88, 573 (1879). GERJSTEZ, D. Recherches sur la dure"e de la solidification des corps sur- fondus. Ann. de P6cole norm. (3) 1, 239 (1884); 44 pp.; Journ. de Phys. (2)2, 159 (1883); 4 pp. GERSTNER. 1, 6, 127, Versuche iiber die Fliissigkiet des Wassers bei verschiedenen Temperaturen. Gilbert's Annalen 5, 160 (1800); 24 pp. Cp. Abhandl. der konigl. Bohmischen Gesellschaft der Wissenschaften, Phys.-math. Teil 3, 141 (1798); 19 pp. GESSNER. Starke-Viscose und Alkalistarke-Zanthogenate. Diss. Tech. Hochsch. Hannover (1910); 48 pp. GETMAN, P. 186, (1) J. chim. phys. 4, 386 (1906); 20 pp.; (2) J. chim. phys. 5, 344 (1907); 19 pp.; (3) A Study of the Solutions of Some Salts Exhibiting Negative Viscosity. J. Am. Chem. Soc. 30, 721 (1908); 16 pp.; (4) The Viscosity of Non-Aqueous Solutions of Potassium Iodide. J. Am. Chem. Soc. 30, 1077 (1908); 8 pp.; (5) Viscosite" et volume ionique. J. chim. phys. 6, 577 (1908); 6 pp.; Cp. Graham. GIBSON, A. 170, 171, (1) An Investigation of the Resistance to the Flow of Air through a Pipe, with the Deduction and Verification of a Rational Formula. Phil. Mag. (6) 17, 395 (1909); 14 pp.; (2) Conversion of kinetic energy to pressure energy in the flow of water through passages having divergent boundaries. Engineering 93, 205 (1912); 2 pp. Cp. Grindley. GIBSON, W. The Influence of Volume Change on the Fluidity of Mixtures of Miscible Liquids. Phil. Mag. (6) 27, 662 (1914); 7 pp. GIBSON, W. H. Viscosity of solutions of cellulose. J. Chem. Soc. 117, 479 (1920); 16pp. GIBSON, W. H. and JACOBS, L. M. The Falling-Sphere Viscometer. J. Chem. Soc. 117, 473 (1920). GIBSON, W.