Sharp Practice.  
Standing with his back to the fireplace, his legs slightly apart, his hands in his pockets, and his eyes fixed on the ceiling, Mr Sharp, Police Superintendent of the Grand National Trunk Railway, communed with himself and dived into the future.
 
Mr Sharp’s powers of diving were almost miraculous. He had an unusually keen eye for the past and the present, but in regard to the future his powers were all but prophetic. He possessed a rare capacity for following up clues; investigating cases; detecting falsehoods, not only of the lip, but of the eye and complexion; and, in a word, was able to extract golden information out of the most unpromising circumstances. He was also all but ubiquitous. Now tracking a suspicion to its source on his own line in one of the Midland counties; anon comparing notes with a brother superintendent at the terminus of the Great Western, or Great Northern, or South-Eastern in London. Sometimes called away to give evidence in a county court; at other times taking a look in at his own home to kiss his wife or dandle his child before dashing off per express to follow up a clue to John O’Groats or the Land’s End. Here, and there, and everywhere—calm, self-possessed, and self-contained, making notes in trains, writing reports in his office, making discoveries and convictions, and sometimes making prisoners with his own hands by night and day, with no fixed hours for work, or rest, or meals, and no certainty in anything concerning him, save in the uncertainty of his movements, Mr Sharp with his myrmidons was the terror of evil doers, and, we may truly add, the safeguard of the public.
 
Little did that ungrateful public know all it owed to the untiring watchfulness and activity of Mr Sharp and his men. If he and his compeers were to be dismissed from our lines for a single week, the descent of a host of thieves and scoundrels to commit wide-spread plunder would teach the public somewhat severely how much they owe to the efficient management of this department of railway business, and how well, constantly and vigilantly—though unobtrusively—their interests are cared for.
 
But to return. Mr Sharp, as we have said stood communing with himself and diving into the future. Apparently his thoughts afforded him some amusement, for his eyes twinkled slightly, and there was a faintly humorous twist about the corners of his mouth.
 
David Blunt sat at a desk near him, writing diligently. Against the wall over his head hung a row of truncheons. Besides the desk, a bench, two or three wooden chairs, and a chest, there was little furniture in the room.
 
Blunt’s busy pen at length ceased to move, and Sharp looked at him.
 
“Well, Blunt,” he said, “I see nothing for it but to make a railway porter of you.”
 
“By all means, sir,” said Blunt, with a smile, laying down his pen.
 
“Gorton station,” continued Sharp, “has become a very nest of thieves. It is not creditable that such a state of things should exist for a week on our line. They have managed things very cleverly as yet. Five or six bales of cloth have disappeared in the course of as many days, besides several loaves of sugar and half-a-dozen cheeses. I am pretty sure who the culprits are, but can’t manage to bring it home to them, so, as I have said, we must convert you into a porter. You have only been once engaged on this part of the line—that was at the accident when you were so hard on poor Mr Gurwood, so that none of the Gorton people will know you. I have arranged matters with our passenger superintendent. It seems that Macdonell, the station-master at Gorton, has been complaining that he is short-handed and wants another porter. That just suits us, so we have resolved to give you that responsible situation. You will get a porter’s uniform from—”
 
At this point Mr Sharp was interrupted by the door opening violently, and a detective in plain clothes entering with a stout young man in his grasp.
 
“Who have we here?” asked Mr Sharp.
 
“Man travelling without a ticket sir,” replied the detective, whose calm demeanour was in marked contrast to the excitement of his prisoner.
 
“Ha! come here; what have you to say for yourself?” demanded the superintendent of the man.
 
Hereupon the man began a violent exculpation of himself, which entailed nearly half-an-hour of vigorous cross-questioning, and resulted in his giving a half-satisfactory account of himself, some trustworthy references to people in town, and being set free.
 
This case having been disposed of, Mr Sharp resumed his conversation with Blunt.
 
“Having been changed, then, into a railway porter, Blunt, you will proceed to Gorton to discharge your duties there, and while doing so you will make uncommonly good use of your eyes, ears, and opportunities.”
 
Mr Sharp smiled and Blunt chuckled, and at the same time Joseph Tipps entered the room.
 
“Good-evening, Mr Sharp,” he said. “Well, anything more about these Gorton robberies?”
 
“Nothing more yet, Mr Tipps, but we expect something more soon, for a new porter is about to be sent to the station.”
 
Tipps, who was a very simple matter-of-fact man in some ways, looked puzzled.
 
“Why, how will the sending of a new porter to the station throw light on the matter?”
 
“You shall know in the course of time, Mr Tipps,” replied the superintendent. “We have wonderful ways of finding out things here.”
 
“Indeed you have,” said Tipps; “and, by the way, that reminds me that they have some wonderful ways of finding out things on the Continent as well as here. I have just heard of a clever thing done by a German professor. It seems that on one of the lines—I forget which—a large box full of silver-plate was despatched. It had a long way to go, and before reaching its destination the plate was stolen, and the box filled up with sand. On this being discovered, of course every sort of investigation was set on foot, but without success. At last the thing came to the ears of a professor of chemistry—or the police went to him, I don’t know which—and it occurred to him that he might get a clue to the thieves by means of the sand in the box. You see the great difficulty the police had, was to ascertain at which of the innumerable stations on the long line, it was likely that the theft had taken place. The professor ordered samples of the sand at all the stations on the line to be sent to him. These he analysed and examined with the microscope, and found that one of the samples was precisely similar in all respects to the sand in the box. The attention of the police was at once concentrated on the station from which that sand had been gathered, and in a short time the guilty parties were discovered and the theft brought home to them. Now, wasn’t that clever?”
 
“Very good, very good, indeed,” said Mr Sharp, approvingly, “and rather peculiar. I had a somewhat peculiar case myself last week. You know some time ago there was a quantity of cloth stolen on this line, for which, by the way, we had to pay full compensation. Well, I could not get any clue to the thieves, but at last I thought of a plan. I got some patterns of the cloth from the party that lost it, and sent one of these to every station on the line where it was likely to have been stolen. Just the other day I got a telegram from Croon station stating that a man had been seen going about in a new suit exactly the same as the pattern. Off I went immediately, pounced on the man, taxed him with the theft, and found the remainder of the cloth in his house.”
 
“Capital,” exclaimed Tipps, “that was smartly managed. And, by the way, wasn’t there something about a case of stealing muffs and boas lately?”
 
“Yes, and we got hold of that thief too, the day before yesterday,” replied Mr Sharp. “I felt sure, from the way in which the theft was committed, that it must be one of our own men, and so it turned out. He had cut open a bale and taken out several muffs and boas of first-rate sable. One set of ’em he gave to his sweetheart, who was seen wearing them in church on Sunday. I just went to her and said I was going to put a question to her, and warned her to speak the truth, as it would be worse for all parties concerned if she attempted to deceive me. I then asked her if she had got the muff and boa from Jim Croydon, the porter. She blushed scarlet, and admitted it at once, but said, poor thing, that she had no idea they had been stolen, and I believe her. This case occurred just after I had watched the mi............