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 southwestern city to which White had gone, notified the Treasury Department at Washington that one of these serial numbers had passed through.

The Treasury Department acted at once.

It sent two officials to this city to run the matter down. These men were careful, experienced and able detectives. They set on foot every investigation which seemed likely to have any result; but they were not able to discover the source of the note which had been observed by the clearing house.

But they remained in charge of the undertaking.

Finally fortune favored them. One day, a young girl came in to the post office to deposit part of her salary at the Postal Savings window. A bill which she offered was of the serial numbers of the stolen currency. The post-office clerk who had been instructed to look out for these numbers immediately called the two government detectives to the window.

When questioned, the girl said she had gotten this bill from a machinery company as part of her salary.

The two detectives went to this company.

They found that this particular note had been brought in by one of their drivers who had received it from a man named White. They