. Bulletin. Natural history; Natural history. Mar. 1970 Buck & Thoits: One-Species Populations of Fishes 125 | 1 1 1 1 1 ¥ o z z /-^ X / f^-*^^ o :! ^o- .^— e J <. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division

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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory