In this issue

PRINCIPAL engineering features of 3 large modern electric power generating stations are discussed in 3 papers appearing in this issue. In the first, the Boulder Dam hydroelectric, plant now being constructed by the federal government on the Colorado River is described. This plant, half of which is in Arizona and half in Nevada, will have an ultimate capacity of 1,317,500 kva (pages 583–94). The second paper describes the Huntley station No. 2, largest 60-cycle steam-electric generating station of the Niagara-Hudson system and a thoroughly modern plant (pages 632–45). In the third paper, the rehabilitation program for the Connors Creek plant in Detroit, Mich., is outlined. This paper should be of particular interest to engineers of power companies still operating obsolete or obsolescent equipment (pages 610–17).