matter."[16] [16] "In that case," replied Dupin, opening a drawer and producing a checkbook, "you may as well fill me up a check for the amount mentioned. When you have signed it I will hand you the letter." I was astounded. The Prefect appeared absolutely thunderstricken. For some minutes he remained speechless and motionless, looking incredulously at my friend with open mouth, and eyes that seemed starting from their sockets; then, apparently recovering himself in some measure, he seized a pen, and after several pauses and vacant stares finally filled up and signed a check for fifty thousand francs and handed it across the table to Dupin. The latter examined it carefully and deposited it in his pocketbook; then, unlocking an escritoire, took thence a letter and gave it to the Prefect. This functionary grasped it in a perfect agony of joy, opened it with a trembling hand, cast a rapid glance at its contents, and then, scrambling and struggling to the door, rushed at length unceremoniously from the room and from the house without having uttered a syllable since Dupin had requested him to fill up the check. When he had gone, my friend entered into some explanations. "The Parisian police," he said, "are exceedingly able in their way. They are persevering, ingenious, cunning, and thoroughly versed in the knowledge which their duties seem chiefly to demand. Thus, when Gāā detailed to us his mode of searching the premises at the Hotel Dāā, I felt entire confidence[17] in his having made a satisfactory investigation, so far as his labours extended." [17] "'So far as his labours extended'?" said I. "Yes," said Dupin. "The measures adopted were not only the best of their kind, but carried out to absolute perfection. Had the letter been deposited within the range of their search, these fellows would, beyond a question, have found it." I merely laughed, but he seemed quite serious in all that he said. "The measures, then," he continued, "were good in their kind and well executed; their defect lay in their being inapplicable to the case and to the man. A certain set of highly ingenious resources are, with the Prefect, a sort of Procrustean bed, to which he forcibly adapts his designs. But he perpetually errs by being too deep or too shallow for the matter in hand; and many a schoolboy is a better reasoner than