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Zinc Blende or Sulphuret of Zinc, has been found in small masses disseminated through Limestone at Milwaukee and on the Neenah river. It is found abundantly in the mineral country associated with the lead ore; in such quantities in some instances, and so intimately belended with the lead as to materially injure [the] its quality, and value. It is called [Carbonate of Zinc] called "Black Jack" by the miners.

Carbonate of Zinc is also found associated in the same way with the lead in the mineral country, and is there known by the significant name of "dry bone".

Galena or Sulphuret of Lead exists in immense quantities in fissures in the [Cliff Limestones] "Geodiferous Limestone" in the counties of Grant, Iowa, Dane, & Green. About thirty millions of pounds of pig lead have been made [have been raised] in one year from these mines.

[Sulphate] Carbonate of Lead called "White Mineral" is found at Blue Mounds and some other places among the mines. It is not found in sufficient quantities to be worked as an ore of lead.