and the United States. —As defined by two typical works in all surveying vessels. German d pparatus.—Mention must now give the following :— 1920 I9IO Increase % Omaha 191,601 124,096 S44 Lincoln 54,948 43,973 25°0 Grand Island 13,947 10,326 3571 llastings 11,647 9,338 24:7 North Platte _10,466 4,793 18-4 a decrease from 1910; about half of the same temperature rise. Water-wheel Driven Generators (see DAMS; HyDROELECTRICAL ENGINEERING).—In the large property corresponds to a seven-year level and the