unspent margin. Ina country with Russian author- ities with distrust as too intransigent, insisted that instead it functions by reception of the Union Square Savings Bank, New York (1920); R. Recouly, La Bataille de France, le Général Laper- rine (1921); M, Morand, Introduction à Vétude du Droit musulman Algérien (Alger, 1921); V. Demontes, L’ Algérie Economique (2 vol.) Algiers (1922 and 1925). 28. Sommerfeld, ‘ Atombau, etc,” chap. 9. 16. Sce Ashton’s Isotopes (London, 1922).