SHELBY COUNTY. 467 
aby: Aluminaand Carbonate 
pons sesquivxide - De cueNs of mag- } Total. 
‘ of iron. f nesia. 
Niagara, Sidney, Dugan’s.. 42.92 99 52 
fs s ela a 44.58 99.68 
Holcomb’s limestone, Spring- 
MOldy ese eerieetoias cisgeceinis 43.05 $9.95 
Frey’s limestone, Spring- 
ENG ccescel Se eae ey 44,93 99 93 
It will be seen that there is little to choose between the best Spring- 
field lime and the Shelby county lime. The former is a little nearer the 
best markets in Ohio, and enjoys the additional advantage of the compe- 
tition of several independent lines of railroads leading to the best 
markets. The Shelby county lime could perhaps be burned a litile 
cheaper on account of the lower priee of fuel, but not enough £0 to over- 
come the disadvantage before referred to. When it shall be burned more 
extensively, which will be done when it can find a market at less 
expense of freight, it will become an important article of commerce 
between this county and other places. 
Fosstls.—This rock from which the lime is made discloses, when broken, 
an abundance of fossils, but from the nature of the rock they are not 
very perfect. There were species of Orthoceras of a large size, a trilobite, 
viz.: Calymene Blumenbachi, corals of the genus Fenestlla and numeious 
shells and crinoids and cystideans, whose names I have not been able to 
- ascertain. 
