oe 
PLATE LVL 
VOLUME VIII. 
University Geological Survey of Kansas. 
ALTA GE Oh GEA ea | 
X) 
cn 
25 
Marcasite. 
23, Marcasite Lamelle. 
r) 
20, 21, and ,22 
Fias. 
66 
24, Marcasite Fiveling. 
66 
Detail of figure 23. 
b) 
25, Marcasite 
66 
