So far as I recollect, the pattern of it was this: they had a pile of Mexican dollars on the table; twelve of them were of even date, fifty of them were of odd dates.

The bankers were to separate a coin from the pile and hide it under a hand, and I must guess "odd" or "even." If I guessed correctly, the coin would be mine; if incorrectly, I lost a dollar.

The first guess I made was "even," and was right.

I guessed again, "even," and took the money.

They fed me another one and I guessed "even" again, and took the money.