^{page 161 note *} Wied. Ann., xix (1883), p. 21.

^{page 161 note †} Zeits. f. physik. Chem., lxxiv (1910), p. 641. See also Joulin, , Ann. Chim. phys. (5), xxii (1881), p. 398Google Scholar; and Favre, , Ann. Ohim. phys. (5), i (1874), p. 209.Google Scholar

^{page 161 note ‡} Proc. Roy. Soc., lxxiv, A (1904), p. 122, and lxxvi, A (1905), p. 325.

^{page 161 note §} Zeits. f. physik. Chem., xlix (1904), p. 602, and Anz. Akad. Wiss. Krakau, 1910 A, p. 345.

^{page 162 note *} The calorimeter was made to the author's design by Baumbach of Manchester. The first calorimeter which subsequently broke was resilvered and evacuated by the author, the second by the maker. The rate of leak was less in the first calorimeter. The author is indebted to Dr Whytelaw-Gray for many hints as to manipulation here.

^{page 163 note *} It would have been possible by means of a tap to adjust the mercury so that the pressure was always (say) 78·0 cms., and so keep the dioxide at a fixed temperature.

^{page 163 note †} A two-way tap above the charcoal bulb would have been simpler.

^{page 163 note ‡} A change in volume on joining of 0·1 c.cm. would affect all the calculated values of the amount adsorbed 003 per cent, and the change must have been less.

^{page 165 note *} The treatment by Freundlich, , Kapillarchtmie, pp. 107–11Google Scholar, is confused and erroneous.

^{page 166 note *} Comptes Rendus, cxlviii, p. 1173 (1907).

^{page 166 note †} Ibid., cxxxix, p. 129 (1904).

^{page 166 note ‡} Journal de Chim. phys., vi, p. 1 (1908).

^{page 169 note *} Mills, , Journ. of Phys. Chem., x, 1 (1906)Google Scholar, calculates λ = 94·7 cal. at –10° C.

^{page 169 note †} Proc. Roy. Soc., lxxviii, A, p. 412.

^{page 171 note *} See Williams, , Trans. Far. Soc., x, p. 167 (1914).CrossRefGoogle Scholar

^{page 171 note †} Proc. Amer. Acad., xlix, 1 (1913).

^{page 171 note ‡} Cf. Donnan's negative surface tension of coiloids.