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Preview Pennsylvania Soil Survey The First 100 Years - Department of ... pdf file

The First 100 Years by ... The First 50 Years . ... This year we celebrate the 100 .... The first soil survey in Pennsylvania was made in Lancaster County in 1900, and ... 1911. Erie. Gustavus Maynadier. 1911. Washington. F.S. Welsh. D.K. Sloan.



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