Note on the age of the metamorphic rocks of Portland, Dodge County, Wisconsin

Roland Duer Irving

doi:10.2475/ajs.s3-5.28.282

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Irving, R. D. (1873). Note on the age of the metamorphic rocks of Portland, Dodge County, Wisconsin. American Journal of Science, s3-5(28), 282–286. https://doi.org/10.2475/ajs.s3-5.28.282

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Note on the Age of the Metamorphic Rocks of Portland, Dodge County, Wisconsin