240 PHENOMENA, ATOMS, AND MOLECULES 



(4) Langmuir, I., Colloid Chemistry, edited by Jerome Alexander, pp. 525-46. 



Chemical Catalog Co., New York (1926). 



(5) Born, M. and Lande, A., Vcrhandl. deut. physik. Ges., 20, 210 (1918). 



(6) Born, M., Verhandl. deut. physik. Ges., 20, 230 (1918). 



(7) Debye, P., Physik. Z., 22, 302 (1921). 



(8) Debye, P. and Hiickel, E., Physik. Z., 24, 185, 305 (1923)- 



(9) Debye, P., Physik. Z., 21, 178 (1920). 



(10) Debye, P., Polar Molecules, pp. 8, 12, 29, 43. Chemical Catalog Co., New York 



(1929). 



(11) Debye, P., Handbuch der Radiologie, 6, 633-43 (1925)- 



(12) Langmuir, L, Third Colloid Symposium Monograph, Chemical Catalog Co., 



June 1925. 



(13) Langmuir, L, Jour. Amer. Chcm. Soc., 40, 1361 (1918). 



(14) Langmuir, L, Proc. Nat. Acad. Sci., 3, 141 (1917)- 



(15) Langmuir, L, Phys. Rev., 22, 357 (1923)- 



(16) Langmuir, L and Kingdon, K. H., Proc. Roy. Soc. (London), 107A, 61 (1925). 



(17) Harkins, W. D., Brown and Davies, Jour. Amer. Chem. Soc, 39, 354 (1917)- 

 Harkins, Davies and Clark, ibid., 39, 541 (1917) and general review of the work 



of Harkins in Colloid Chemistry (Alexander), Chemical Catalog Co., 

 New York (1926). 



(18) Langmuir, L, Trans. Faraday Soc, //, 621 (1921). 



(19) Langmuir, L, Jour. Amer. Chem. Soc, 37, 1148 (1915)- 



(20) Langmuir, L, Jour. Amer. Chem. Soc, 38, 2272 (1916). 



