768 BECKETT 



REFERENCES 



American Public Health Association, 1975, Standard Methods for the Examina- 

 tion of Water and Wastewater, 14th ed., pp. 440-447, New York. 



Beck, W. M., Jr., 1954, Studies in Stream Pollution Biology. I. A Simplified 

 Ecological Classification of Organisms, J. Fla. Acad. Sci., 17; 211-227. 



, and E. C. Beck, 1966, Chironomidae (Diptera) of Florida. 1. Pentaneurini 



(Tanypodinae), Bull. Fla. State Mus., Biol. Sci., 10: 305-379. 



Beckett, D. C, 1977, Compositional Variation and Ordination of Macro- 

 invertebrate Communities in a Multi-Stressed River System, M.S. Thesis, 

 University of Cincinnati, Cincinnati, Ohio. 



Bray, J. R., and J. T. Curtis, 1957, An Ordination of the Upland Forest 

 Communities of Southern Wisconsin, Ecol. Monogr., 27: 325-349. 



Burlington, R. F., 1962, Quantitative Biological Assessment of Pollution, J. 

 Water Pollut. Control Fed., 34: 414-432. 



Conn, C. C, 1973, Biological Survey of the Great Miami River, Wright State 

 University and Miami Conservancy District, Dayton, Ohio. 



Crossman, J. S., R. L. Kaesler, and J. Cairns, Jr., 1974, The Use of Cluster 



Analysis in the Assessment of Spills of Hazardous Materials, Am. Midi. Nat., 



92: 94-114. 

 Dice, L. R., 194 5, Measures of the Amount of Ecological Association Between 



Species, Ecology, 26: 297-302. 

 Dixon, W. J. (Ed.), 1973, Biomedical Computer Programs, pp. 305-330, 



University of California Press, Berkeley. 



Fullner, R. W., 1971, A Comparison of Macroinvertebrates Collected by Basket 

 and Modified Multi-Plate Samplers, J. Water Pollut. Control Fed., 43: 

 494-499. 



Hanson, H. C, 1955, Characteristics of the Stipa comata-Bouteloua gracilis- 

 Touteloua curtipendula Association of Northern Colorado, Ecology, 36: 

 269-280. 



Harrell, R. C, and T. C. Dorris, 1968, Stream Order, Morphometry, Physico- 

 Chemical Conditions, and Community Structure of Benthic Macro- 

 invertebrates in an Intermittent Stream System, Am. Midi. Nat., 80: 

 220-251. 



Hilsenhoff, W. L., 1975, Aquatic Insects of Wisconsin, with Generic Keys and 

 Notes on Biology, Ecology, and Distribution, Wisconsin Technical Bulletin, 

 Vol. 89, pp. 1-82, Department of Natural Resources, Madison, Wisconsin. 



Holsinger, J. R., 1972, The Freshwater Amphipod Crustaceans (Gammaridae) of 

 North America, pp. 11-15, U. S. Environmental Protection Agency, Cincin- 

 nati, Ohio. 



Hurd, R. M., 1961, Grassland Vegetation in the Big Horn Mountains, Wyoming, 

 Ecology, 42: 459-467. 



Hynes, H. B. N., 1970, The Ecology of Running Waters, pp. 383-397, University 



of Toronto Press, Toronto, Ont. 

 Kaesler, R. L., and J. Cairns, Jr., 1972, Cluster Analysis of Data from 



Limnological Surveys of the Upper Potomac River, Am. Midi. Nat., 88: 



56-67. 

 Klemm, D. J., 1972, Freshwater Leeches (Annelida: Hirudinea) of North 



America, pp. 1-44, U. S. Environmental Protection Agency, Cincinnati, 



Ohio. 



