title: Development of ideas on channel flow in bedrock in the period 1850-1950.
authors: Worthington Groundwater, 55 Mayfair Avenue, Dundas, Ontario L9H 3K9, Canada; (905) 627-1781; sw@worthingtongroundwater.com.
authors: Stephen R H
authors: SR
authors: Worthington
mesh_terms: D005060:Europe; D005844:Geology / Q000266:history*; D060587:Groundwater; D049672:History, 19th Century; D049673:History, 20th Century; D062070:Hydrology / Q000266:history*; D014481:United States