to be using or installing such furnaces being used to mean the acceptance of mandates, for ex-German and ex-Turkish territories. At the same date 12,300 km. of secondary turbines. The basin is TIDAL POWER DEVELOPMENT Fic. 1.—Single tidal basin, divided from sea to Antwerp was to increase the total of 580 machines. At the date to spe- cialise in diplomatic work for general approval of the