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- catalog contributor b8648348.
- catalog created "1949]".
- catalog date "1949".
- catalog date "1949]".
- catalog dateCopyrighted "1949]".
- catalog description "Bibliography: p. 295.".
- catalog extent "277-341 p.".
- catalog issued "1949".
- catalog issued "1949]".
- catalog language "eng".
- catalog publisher "[Philadelphia?".
- catalog spatial "Pennsylvania Lancaster County.".
- catalog subject "Limnology.".
- catalog subject "Rivers Pennsylvania Lancaster County.".
- catalog subject "Water Pollution.".
- catalog title "A proposed biological measure of stream conditions, based on a survey of the Conestoga Basin, Lancaster County, Pennsylvania.".
- catalog type "text".