100 ££. ORTON—GEOLOGICAL PROBABILITIES AS TO PETROLEUM. 
acteristics, are especially exposed to the wastes that come through igno- 
rance, recklessness, or speculative greed, or through all combined. It 
is this liability that constitutes the peculiar claim of which I made men- 
tion a moment ago. It will be a reproach to our science to have the 
experiences of Oil Creek, Pittsburg, Findlay, and Baku indefinitely re- 
peated. It will bea lasting reproach to have the important exploitation 
of petroleum restricted, by the exhaustion of its stocks, to the century 
in which it was begun and 50 years of which still remain. 
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