The Online Books Page

Books by Timothy C. Willoughby:

Books in the extended shelves:

• Willoughby, Timothy C.: Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984 (U.S. Geological Survey, 1987), also by Myron H. Brooks and L. J. Schroder (page images at HathiTrust)
• Willoughby, Timothy C.: Chemical stability of wet-deposition samples subsampled daily for one week (Dept. of the Interior, U.S. Geological Survey :, 1990), also by Randolph B. See, L. J. Schroder, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Concentrations of Escherichia coli in streams in the Kankakee and Lower Wabash River Watersheds in Indiana, June-September 1999 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2001), also by Cheryl A. Silcox, Bret A. Robinson, Geological Survey (U.S.), and Indiana. Department of Environmental Management (page images at HathiTrust)
• Willoughby, Timothy C.: Concentrations of Escherichia coli in streams in the Ohio River Watershed in Indiana, May-August 2000 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2002), also by Cheryl A. Silcox, Bret A. Robinson, Geological Survey (U.S.), and Indiana. Department of Environmental Management (page images at HathiTrust)
• Willoughby, Timothy C.: An estimate of chemical loads from ground water to the Grand Calumet River and Indiana Harbor Canal, northwestern Indiana (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2001), also by Qaadir A. Siddeeq, Geological Survey (U.S.), and United States Army Corps of Engineers (page images at HathiTrust)
• Willoughby, Timothy C.: External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1986 (Dept. of the Interior, U.S. Geological Survey :, 1988), also by Randolph B. See, L. J. Schroder, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: External quality-assurance results for the National Atmospheric Deposition Program and the National Trends Network during 1987 (Dept. of the Interior, U.S. Geological Survey :, 1989), also by Randolph B. See, L. J. Schroder, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1989 (U.S. Dept. of the Interior, U.S. Geological Survey :, 1991), also by Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1988 (Dept. of the Interior, U.S. Geological Survey :, 1990), also by Randolph B. See, J. D. Gordon, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Interlaboratory comparability, bias, and precision for four laboratories measuring analytes in wet deposition, October 1983-December 1984 (Dept. of the Interior, U.S. Geological Survey :, 1987), also by Myron H. Brooks, L. J. Schroder, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Precision and bias of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network : 1983 and January 1980 through September 1984 (U.S. Dept. of the Interior, Geological Survey ;, 1985), also by L. J. Schroder, Amy W. Bricker, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Quality of wet deposition in the Grand Calumet River watershed, northwestern Indiana, April 29, 1997-April 28, 1998 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2000), also by Geological Survey (U.S.) and Indiana. Dept. of Environmental Management (page images at HathiTrust)
• Willoughby, Timothy C.: Quality of wet deposition in the Grand Calumet River watershed, northwestern Indiana, June 30, 1992-August 31, 1993 (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1995), also by Geological Survey (U.S.) and Indiana. Department of Environmental Management (page images at HathiTrust)
• Willoughby, Timothy C.: Results of external quality-assurance program for the National Atmospheric Deposition Program and National Trends Network during 1985 (Dept. of the Interior, U.S. Geological Survey ;, 1988), also by Myron H. Brooks, L. J. Schroder, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Results of intercomparison studies for the measurement of pH and specific conductance at National Atmospheric Deposition Program/National Trends Network monitoring sites, October 1981-October 1985 (Dept. of Interior, U.S. Geological Survey :, 1987), also by L. J. Schroder, Myron H. Brooks, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Stability of nitrate-ion concentrations in simulated deposition samples used for quality-assurance activities by the U.S. Geological Survey (Dept. of the Interior, U.S. Geological Survey :, 1989), also by L. J. Schroder, Randolph B. See, and Geological Survey (U.S.) (page images at HathiTrust)
• Willoughby, Timothy C.: Summary of the National Atmospheric Deposition Program/National Trends Network intersite-comparison program, November 1978-November 1989 (U.S. Dept. of the Interior, U.S. Geological Survey :, 1991), also by J. D. Gordon, L. J. Schroder, and Geological Survey (U.S.) (page images at HathiTrust)

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