WATER.) BIBLIOGRAPHY.-D. B. Rushmore & E. A. Lof, Hydro-Electric Power Bibliography.-D. B. Rushmore & E. A. Lof, Hydro-Electric Power Stations (192o) ; J. W. Meares, Hydro-Electric Development (192o) ; F. F. Fergusson, Water Power Engineering (1921) ; A. H. Gibson, Hydro-Electric Engineering (1922) ; Creager & Justin, Hydro-Electric Handbook (1927). (A. H. G.)