Evon Zartman Vogt,Ray Hyman
Despite advanced technology, the practice of water witchingâ€”using a forked stick to indicate an underground source of waterâ€”persists in both rural and urban areas. ,Water Witching U.S.A., is a lively look at "dowsing," full of personal accounts, historical background, and data from controlled experiments and a nationwide survey. This study includes a collection of photographs, drawings, and historical woodcuts showing the tools, techniques, and early instances of dowsing, as well as cross-sectional views contrasting the dowser's explanation of groundwater with the geologist's. 
Water Witching U.S.A.