Includes bibliographical references and index.

Introduction -- Wisconsin : the Birge-Juday era / David G. Frey -- Wisconsin, 1940-1961 / Arthur D. Hosier -- Michigan / David C. Chandler -- New England / John L. Brooks and Edward S. Deevey, Jr. -- Illinois / Gerald E. Gunning -- Middle Atlantic States / Clifford O. Berg -- Central States / Shelby D. Gerking -- South Atlantic States / James L. Yount -- Central Gulf States and the Mississippi embayment / Walter G. Moore -- Minnesota and the Dakotas / Samuel Eddy -- Mid-continent States / Kenneth D. Coriander, Robert S. Campbell, and William H. Irwin -- Rocky Mountain States / Robert W. Pennak -- Pacific Coast and Great Basin / W. T. Edmondson -- The American Southwest and Middle America / Gerald A. Cole -- The West Indies / Gustavo A. Candelas and Graciela C. Candelas -- Western Canada / T. G. Northcote and P. A. Larkin -- Ontario and Quebec / F. E. J. Fry and Vianney Legendre -- The Atlantic Provinces of Canada / M. W. Smith -- The St. Lawrence Great Lakes / Alfred M. Beeton and David C. Chandler -- Alaska, Yukon, Northwest Territories, and Greenland / Daniel A. Livingstone -- Impact of reservoirs / Joe Kendall Neel -- Farm ponds / J. S. Dendy -- Paleolimnology / W. H. Bradley -- Sanitational limnology / Clarence M. Tarzwell -- A history of the American Society of Limnology and Oceanography / George H. Lauff -- The prospect before us / G. E. Hutchinson.