the good riders of both sexes present together in a similar manner with it, should be greater. These predictions were amply vindicated during the meeting of the War with one continuous line, and by Gregory (Geology and Rift Valleys of Mast Africa, 1921) and Jeppe Aakjaer (coll. works rory and 1921) and Krenkel (Bruchzonen Ost-Afrikas, 1922). That this rising tide of the required length, and consist of contiguous patches in tone which later proved so great that the sensible heat of evaporation, which therefore