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By: Schuster, Guenter A. - Butler, Robert S. - Stansbery, David H. (David Honor)Type: ArticleIn: Transactions of the Kentucky Academy of ScienceVolume: 50Series:Issue: 1-2Date: 1989-03Page Range: 79--85Publication Info: [Lexington, Ky.], Kentucky Academy of Science, 1923-1997Subjects: