LOGICAL SURVEY 



GEOLOGY OF LEADVILLK, PL XXiV 



> SMALLER FURNACE 

 ELEVATION 



Vlrr Brick 



FIII 2 LARGER. FURNACE 



ELEV.- 

 Clay 



Scale i inch to 6 feet or 1=72 



A. (Jnyard, Metallurgist 



la Ch.,r6t> 



SQUAHK KrHNACES. 

 SMKLTF;B G. 



