Mead, Elwood Plans of structures in use on irrigation canals in the United States: from drawings exhibited by the Office of Experiment Stations at Paris in 1900 and at Buffalo in 1901 - Washington, D.C. U.S. Department of Agriculture 1903 - 51 p. ilus. Subjects--Topical Terms: CANALES DE RIEGO Subjects--Geographic Terms: ESTADOS UNIDOS Universal Decimal Class. No.: A/627.520973/M34