IOWA ACADEMy OF SCIENCES, VOL. III. 



Figure 1. Exposure of LeClaire limestone at the Sugar creek lime quarries. Cedar 

 county. Iowa. Tlie limestone is obliquely bedded in the lower part of the section and 

 horizontally bedded above. The same fauna occurs in both sets of beds. Oblique 

 beds dip southeast. 



Figure 3 Oblique beds of LeClaire limestone, dipping northeast, in west bank of 

 Mississippi river, one-half mile below LeClaire. Iowa. 



