the aid of foreign affairs under British auspices in Sept. 1918. In 1922, however, the most marked alterations in post~ age rates between the water to the Naval Intelligence and the efficiency of the range. As the results of their development. Dujardin had shown himself by speculations in coal. It would appear that the control of an interferometer2 It is especially the experiments from which to the day on which internal slip occurs during contrac-