‘You appear to be astonished,’ he said, smiling at my expression of surprise. ‘Now that I do know it I shall do my best to forget it.’
‘To forget it!’
‘You see,’ he explained, ‘I consider that a man’s brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. A fool takes in all the lumber of every sort that he comes across, so that the knowledge which might be useful to him gets crowded out, or at best is jumbled up with a lot of other things, so that he has a difficulty in laying his hands upon it. Now the skilful workman is very careful indeed as to what he takes into his brain-attic. He will have nothing but the tools which may help him in doing his work, but of these he has a large assortment, and all in the most perfect order. It is a mistake to think that that little room has elastic walls and can distend to any extent. Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.’
‘But the Solar System!’ I protested.
‘What the deuce is it to me?’ he interrupted impatiently: ‘you say that we go round the sun. If we went round the moon it would not make a penny-worth of difference to me or to my work.’
I was on the point of asking him what that work might be, but something in his manner showed me that the question would be an unwelcome one. I pondered over our short conversation, however, and endeavoured to draw my deductions from it. He said that he would acquire no knowledge which did not bear upon his object. Therefore all the knowledge which he possessed was such as would be useful to him. I enumerated in my own mind all the various points upon which he had shown me that he was exceptionally well-informed. I even took a pencil and jotted them down. I could not help smiling at the document when I had completed it. It ran in this way:
Sherlock Holmes – his limits
1 Knowledge of Literature: Nil.
2 Knowledge of Philosophy: Nil.
3 Knowledge of Astronomy: Nil.
4 Knowledge of Politics: Feeble.
5 Knowledge of Botany: Variable. Well up in belladonna, opium, and poisons generally. Knows nothing of practical gardening.
6 Knowledge of Geology: Practical, but limited. Tells at a glance different soils from each other. After walks has shown me splashes upon his trousers, and told me by their colour and consistence in what part of London he had received them.
7 Knowledge of Chemistry: Profound.
8 Knowledge of Anatomy: Accurate, but unsystematic.
9 Knowledge of Sensational Literature: Immense. He appears to know every detail of every horror perpetrated in the century.
10 Plays the violin well.
11 Is an expert singlestick player, boxer, and swordsman.
12 Has a good practical knowledge of British law.
When I had got so far in my list I threw it into the fire in despair. ‘If I can only find what the fellow is driving at by reconciling all these accomplishments, and discovering a calling which needs them all,’ I said to myself, ‘I may as well give up the attempt at once.’
I see that I have alluded above to his powers upon the violin. These were very remarkable, but as eccentric as all his other accomplishments. That he could play pieces, and difficult pieces, I knew well, because at my request he has played me some of Mendelssohn’s Lieder, and other favourites. When left to himself, however, he would seldom produce any music or attempt any recognizing air. Leaning back in his arm-chair of an evening, he would close his eyes and scrape carelessly at the fiddle which was thrown across his knee. Sometimes the chords were sonorous and melancholy. Occasionally they were fantastic and cheerful. Clearly they reflected the thoughts which possessed him, but whether the music aided those thoughts, or whether the playing was simply the result of a whim or fancy, was more than I could determine. I might have rebelled against these exasperating solos had it not been that he usually terminated them by playing in quick succession a whole series of my favourite airs as a slight compensation for the trial upon my patience.
During the first week or so we had no callers, and I had begun to think that my companion was as friendless a man as I was myself. Presently, however, I found that he had many acquaintances, and those in the most different classes of society. There was one little sallow, rat-faced, dark-eyed fellow, who was introduced to me as Mr Lestrade, and who came three or four times in a single week. One morning a young girl called, fashionably dressed, and stayed for half an hour or more. The same afternoon brought a grey-headed, seedy visitor, looking like a Jew pedlar, who appeared to me to be much excited, and who was closely followed by a slip-shod elderly woman. On another occasion an old white-haired gentleman had an interview with my companion; and on another, a railway porter in his velveteen uniform. When any of these nondescript individuals put in an appearance, Sherlock Holmes used to beg for the use of the sitting-room, and I would retire to my bedroom. He always apologized to me for putting me to this inconvenience. ‘I have to use this room as a place of business,’ he said, ‘and these people are my clients.’ Again I had an opportunity of asking him a point-blank question, and again my delicacy prevented me from forcing another man to confide in me. I imagined at the time that he had some strong reason for not alluding to it, but he soon dispelled the idea by coming round to the subject of his accord.
It was upon the 4th of March, as I have good reason to remember, that I rose somewhat earlier than usual, and found that Sherlock Holmes had not yet finished his breakfast. The landlady had become so accustomed to my late habits that my place had not been laid nor my coffee prepared. With the unreasonable petulance of mankind I rang the bell and gave a curt intimation that I was ready. Then I picked up a magazine from the table and attempted to while away the time with it, while my companion munched silently at his toast. One of the articles had a pencil mark at the heading, and I naturally began to run my eye through it.
Its somewhat ambitious title was ‘The Book of Life’, and it attempted to show how much an observant man might learn by an accurate and systematic examination of all that came in his way. It struck me as being a remarkable mixture of shrewdness and of absurdity. The reasoning was close and intense, but the deductions appeared to me to be far-fetched and exaggerated. The writer claimed by a momentary expression, a twitch of a muscle or a glance of an eye, to fathom a man’s inmost thoughts. Deceit, according to him, was an impossibility in the case of one trained to observation and analysis. His conclusions were as infallible as so many propositions of Euclid. So startling would his results appear to the uninitiated that until they learned the processes by which he had arrived at them they might well consider him as a necromancer.
‘From a drop of water,’ said the writer,
a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other. So all life is a great chain, the nature of which is known whenever we are shown a single link of it. Like all other arts, the Science of Deduction and Analysis is one which can only be acquired by long and patient study, nor is life long enough to allow any mortal to attain the highest possible perfection in it. Before turning to these moral and mental aspects of the matter which present the greatest difficulties, let the inquirer begin by mastering more elementary problems. Let him on meeting a fellow-mortal, learn at a glance to distinguish the history of the man, and the trade or profession to which he belongs. Puerile as such an exercise may seem, it sharpens the faculties of observation, and teaches one where to look and what to look for. By a man’s finger-nails, by his coat-sleeve, by his boot, by his trouser-knees, by the callosities of his forefinger and thumb, by his expression, by his shirt-cuffs – by each of these things a man’s calling is plainly revealed. That all united should fail to enlighten the competent inquirer in any case is almost inconceivable.
‘What ineffable twaddle
!’ I cried, slapping the magazine down on the table; ‘I never read such rubbish in my life.’
‘What is it?’ asked Sherlock Holmes.
‘Why, this article,’ I said, pointing at it with my egg-spoon as I sat down to my breakfast. ‘I see that you have read it since you have marked it. I don’t deny that it is smartly written. It irritates me, though. It is evidently the theory of some armchair lounger who evolves all these neat little paradoxes in the seclusion of his own study. It is not practical. I should like to see him clapped down in a third-class carriage on the Underground, and asked to give the trades of all his fellow-travelers. I would lay a thousand to one against him.’
‘You would lose your money,’ Holmes remarked calmly. ‘As for the article, I wrote it myself.’
‘You!’
‘Yes; I have a turn both for observation and for deduction. The theories which I have expressed there, and which appear to you to be so chimerical, are really extremely practical – so practical that I depend upon them for my bread and cheese.’
‘And how!’ I asked involuntarily.
‘Well, I have a trade of my own. I suppose I am the only one in the world. I’m a consulting detective, if you can understand what that is. Here in London we have lots of Government detectives and lots of private ones. When these fellows are at fault, they come to me, and I manage to put them on the right scent. They lay all the evidence before me, and I am generally able, by the help of my knowledge of the history of crime, to set them straight. There is a strong family resemblance about misdeeds, and if you have all the details of a thousand at your finger ends, it is odd if you can’t unravel the thousand and first. Lestrade is a well-known detective. He got himself into a fog recently over a forgery case, and that was what brought him here.’
‘And these other people?’
‘They are mostly sent on by private inquiry agencies. They are all people who are in trouble about something and want a little enlightenment. I listen to their story, they listen to my comments, and then I pocket my fee.’
‘But do you mean to say,’ I said, ‘that without leaving your room you can unravel some knot which other men can make nothing of, although they have seen every detail for themselves?’
‘Quite so. I have a kind of intuition that way. Now and again a case turns up which is a little more complex. Then I have to bustle about and see things with my own eyes. You see I have a lot of special knowledge which I apply to the problem, and which facilitates matters wonderfully. Those rules of deduction laid down in that article which aroused your scorn are invaluable to me in practical work. Observation with me is second nature. You appeared to be surprised when I told you, on our first meeting, that you had come from Afghanistan.’
‘You were told, no doubt.’
‘Nothing of the sort. I knew you came from Afghanistan. From long habit the train of thoughts ran so swiftly through my mind that I arrived at the conclusion without being conscious of intermediate steps. There were such steps, however. The train of reasoning ran: “Here is a gentleman of a medical type, but with the air of a military man. Clearly an army doctor then. He has just come from the tropics, for his face is dark, and that is not the natural tint of his skin, for his wrists are fair. He has undergone hardship and sickness, as his haggard face says clearly. His left arm has been injured. He holds it in a stiff and unnatural manner. Where in the tropics could an English army doctor have seen much hardship and got his arm wounded? Clearly in Afghanistan.” The whole train of thought did not occupy a second. I then remarked that you came from Afghanistan, and you were astonished.’
‘It is simple enough as you explain it,’ I said, smiling. ‘You remind me of Edgar Allan Poe’s Dupin. I had no idea that such individuals did exist outside of stories.’
Sherlock Holmes rose and lit his pipe. ‘No doubt you think that you are complimenting me in comparing me to Dupin,’ he observed. ‘Now, in my opinion, Dupin was a very inferior fellow. That trick of his of breaking in on his friends’ thoughts with an apropos remark after a quarter of an hour’s silence is really very showy and superficial. He had some analytical genius, no doubt; but he was by no means such a phenomenon as Poe appeared to imagine.’
‘Have you read Gaboriau’s works?’ I asked. ‘Does Lecoq come up to your idea of a detective?’
Sherlock Holmes sniffed sardonically. ‘Lecoq was a miserable bungler,’ he said, in an angry voice; ‘he had only one thing to recommend him, and that was his energy. That book made me positively ill. The question was how to identify an unknown prisoner. I could have done it in twenty-four hours. Lecoq took six months or so. It might be made a text-book for detectives to teach them what to avoid.’
I felt rather indignant at having two characters whom I had admired treated in this cavalier style. I walked over to the window, and stood looking out into the busy street. ‘This fellow may be very clever,’ I said to myself, ‘but he is certainly very conceited.’
‘There are no crimes and no criminals in these days,’ he said, querulously. ‘What is the use of having brains in our profession? I know well that I have it in me to make my name famous. No man lives or has ever lived who has brought the same amount of study and of natural talent to the detection of crime which I have done. And what is the result? There is no crime to detect, or, at most, some bungling villainy with a motive so transparent that even a Scotland Yard official can see through it.’
I was still annoyed at his bumptious style of conversation. I thought it best to change the topic.
‘I wonder what that fellow is looking for?’ I asked, pointing to a stalwart, plainly-dressed individual who was walking slowly down the other side of the street, looking anxiously at the numbers. He had a large blue envelope in his hand, and was evidently the bearer of a message.
‘You mean the retired sergeant of Marines,’ said Sherlock Holmes.
‘Brag and bounce!’ thought I to myself. ‘He knows that I cannot verify his guess.’
The thought had hardly passed through my mind when the man whom we were watching caught sight of the number on our door, and ran rapidly across the roadway. We heard a loud knock, a deep voice below, and heavy steps ascending the stair.
‘For Mr Sherlock Holmes,’ he said, stepping into the room and handing my friend the letter.
Here was an opportunity of taking the conceit out of him. He little thought of this when he made that random shot. ‘May I ask, my lad,’ I said, in the blandest voice, ‘what your trade may be?’
‘Commissionaire, sir,’ he said, gruffly. ‘Uniform away for repairs.’
‘And you were?’ I asked, with a slightly malicious glance at my companion.
‘A sergeant, sir, Royal Marine Light Infantry, sir. No answer? Right, sir.’
He clicked his heels together, raised his hand in a salute, and was gone.
3
The Lauriston Gardens Mystery
I confess that I was considerably startled by this fresh proof of the practical nature of my companion’s theories. My respect for his powers of analysis increased wondrously. There still remained some lurking suspicion in my mind, however, that the whole thing was a prearranged episode, intended to dazzle me, though what earthly object he could have in taking me in was past my comprehension. When I looked at him, he had finished reading the note, and his eyes had assumed the vacant, lack-lustre expression which showed mental abstraction.
‘How in the world did you deduce that?’ I asked.
‘Deduce what?’ said he, petulantly.
‘Why, that he was a retired sergeant of Marines.’
‘I have no time for trifles,’ he answered brusquely. Then with a smile: ‘Excuse my rudeness. You broke the thread of my thoughts; but perhaps it is as well. So you actually were not able to see that that man was a sergeant of Marines?’
‘No, indeed.’
‘It was easier to know it than to explain w
hy I know it. If you were asked to prove that two and two made four, you might find some difficulty, and yet you are quite sure of the fact. Even across the street I could see a great blue anchor tattooed on the back of the fellow’s hand. That smacked of the sea. He had a military carriage, however, and regulation side whiskers. There we have the marine. He was a man with some amount of self-importance and a certain air of command. You must have observed the way in which he held his head and swung his cane. A steady, respectable, middle-aged man, too, on the face of him – all facts which led me to believe that he had been a sergeant.’
‘Wonderful!’ I ejaculated.
‘Commonplace,’ said Holmes, though I thought from his expression that he was pleased at my evident surprise and admiration. ‘I said just now that there were no criminals. It appears that I am wrong – look at this!’ He threw me over the note which the commissionaire had brought.
‘Why,’ I cried, as I cast my eye over it, ‘this is terrible!’
‘It does seem to be a little out of the common,’ he remarked, calmly. ‘Would you mind reading it to me aloud?’
This is the letter which I read to him:
‘“My dear Mr Sherlock Holmes, There has been a bad business during the night at 3, Lauriston Gardens, off the Brixton Road. Our man on the beat saw a light there about two in the morning, and as the house was an empty one, suspected that something was amiss. He found the door open, and in the front room, which is bare of furniture, discovered the body of a gentleman, well dressed, and having cards in his pocket bearing the name of ‘Enoch J. Drebber, Cleveland, Ohio, U.S.A.’ There had been no robbery, nor is there any evidence as to how the man met his death. There are marks of blood in the room, but there is no wound upon his person. We are at a loss as to how he came into the empty house; indeed the whole affair is a puzzler. If you can come round to the house any time before twelve, you will find me there. I have left everything in statu quo until I hear from you. If you are unable to come, I shall give you fuller details, and would esteem it a great kindness if you would favour me with your opinion. Yours faithfully, TOBIAS GREGSON.”’
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