Trans. Wis. Acad.. Vol. XIII. 



Plate XXI. 





Lend.. Group I. 



I I Middle-. Group H , 



JVi^n-Lecui. GroiLp TIT, 



Liberty 



Ne^ l/Vine 



dodge 



CcLSCOjdie 



White 

 WcLter 



'Pr-cbir-ie 



Mines 



Traces of Lea d. 



Lead, . Oroup L 



Middle.CLroiLp H. 

 Leojd, Oro up IH . 



Waskin^ton 



