814 



GEOLOGY OP OHIO. 



Specific gravity . 



Volatile matter 



Water 



Silioiona matter 



Carbonate of iron 



Sesq^uioxide of iron 



Alumina 



Oxide of manganese 



■ Phosphate of lime 



Carbonate of lime 



" m agnosia - 

 Sulphnr 



Total . 



Metallic iron 



Phosphoric acid. 



2.494 



30.50 



11.84 



43.26 

 9.94 



Trace. 

 1.00 



Trace, 

 1.87 

 2.03 

 0.18 



99.62 



27.12 

 Trace. 



2.539 



0.78 



11.94 



56.23 



12.34 



0.50 



1.70 



1.74 



8.59 



5.33 



Trace. 



99.15 



35.^ 

 0'.79 



3.509 



6.06 

 78.64 

 8.96 

 0.40 

 1.00 

 0.83 

 1.55 

 2.08 

 Trace. 



99.52 



44.23 



0.38 



Limestones. 



N. Goodman'is, Green township... .. . . , W. A.Hooker. 



J. Moore's, Lowell " 



" '< F. N. Holbrook. 



