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150 fancy that the prosperity they see will last always, that it is only the beginning of a greater prosperity. They altogether over-estimate the demand for the article they deal in, or the work they do. They all in their degree—and the ablest and the cleverest the most—work much more than they should, and trade far above their means. Every great crisis reveals the excessive speculations of many houses which no one before suspected, and which commonly indeed had not begun or had not carried very far those speculations, till they were tempted by the daily rise of price and the surrounding fever.

The case is worse, because at most periods of great commercial excitement there is some mixture of the older and simpler kind of investing mania. Though the money of saving persons is in the hands of banks, and though, by offering interest, banks retain the command of much of it, yet they do not retain the command of the whole, or anything near the whole; all of it can be used, and much of it is used, by its owners. They speculate with it in bubble companies and in worthless shares, just as they did in the time of the South Sea mania, when there were no banks, and as they would again in England supposing that banks ceased to exist. The mania of 1825 and the mania of 1866 were striking examples of this; in their case to a great extent, as in most