Andrew Carnegie：Autobiography of Andrew Carnegie, Additional Excerpt 339

There now remained to be acquired only the supply of iron stone. If we could obtain this we should be in the position occupied by only two or three of the European concerns. We thought at one time we had succeeded in discovering in Pennsylvania this last remaining link in the chain. We were misled, however, in our investment in the Tyrone region, and lost considerable sums as the result of our attempts to mine and use the ores of that section. They promised well at the edges of the mines, where the action of the weather for ages had washed away impurities and enriched the ore, but when we penetrated a small distance they proved too "lean" to work.

Source： https://www.gutenberg.org/ebooks/17976
Locator：Additional excerpt 339 · Verified：2026-10-19 · Verification：Short excerpt

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