• BIBLIOGRAPHY OF THE DRIFTLESS AREA. 
W. D. SHIPTON. 
1682. 
Lead ore supposed to have been discovered in Wisconsin by Nicholas 
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1698. 
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Schoolcraft, H. R., Narrative Journal of Travels, etc., Albany. 
1822. 
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1824. 
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1825. 
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Saint Peters River, Lake Winnipeek, Lake of the Woods, etc., etc., 
2 Vols., London. 
