Mr. A. E. Zimmern's pamphlet on The Economic Weapon in
the War against Germany (Allen and T. T nwin, 2d. net) is well worth reading. Germany, he says, has conquered many countries, but " the Allies have conquered cotton, wool, jute, leather, copper, and feeding-stuffs," and their position as controllers of the siege of Germany " grows stronger day by day simply by the efflux of time." The Germans are well aware of the fact, and British people should know more about the most powerful weapon in Allied hands.