University Geological Survey of Kansas. VOLUME VIII. PuaTE LIV. 
Qa 
IZ 
Fie. 7, Long Etch Figures on Sphalerite, Plan. 
‘“ 8, Elevation Plan of figure 7. 
* 9, Sphalerite, Type I. 
* 10, Sphalerite, Type II. 
‘11, Sphalerite, Type IIT. 
‘12, Sphalerite, Type IV. 
