George A. Birmingham,
The Mysterious Envelope
(1913)
“ I began. "No, I don't," said the Colonel. "There is no greater mistake than thinking. I collect facts. Once the facts are before us they will do their own thinking." "Of course they will; but still—" The Colonel waved his hand at me and said that he knew a great deal more about the criminal classes than I did. This was true. I had never been really intimate with a criminal. I at once gave up my attempt to argue. "I called at the post-office," the Colonel went on, "and discovered that the ink used there is not Stephens's Blue-Black Ink, the kind with which the envelope was addressed. ”
