pre-Morrisian days when overmantels as yet were not), and he saw to his great comfort that his face was resting in its usual handsome repose and peacefulness. A bright, earnest, strong face it was, with all the promise of greatness already in it; and so Hetty thought as she looked up at it from the low footstool where she sat by his side, and half whispered into his ear the little timid confidences of early betrothal.

Five o'clock tea came all too soon, and then Arthur felt he must really be going and must get home to do a little. reading. On his way, he fancied once he saw a street boy start in evident surprise as he approached him, but it might be fancy; and when the street boy stuck his tongue into the corner of his cheek and uttered derisive shouts from a safe distance, Arthur concluded he was only doing after the manner of his kind out of pure gratuitous insolence. He went home to his lodgings and sat down to an hour's work; but after he had read up several pages more of "Stuckey on Gout," he laid down the book in disgust, and took out Helmholtz and Joule instead, indulging himself with a little desultory reading in his favourite study of the higher physics.

As he read and read the theory of correlation, the great idea as to the real nature of energy, which had escaped all these learned physicists, and which was then slowly forming itself in his own mind, grew gradually clearer and clearer still before his mental vision. Helmholtz was wrong here, because he had not thoroughly appreciated the disjunctive nature of electric energy; Joule was wrong there, because he had failed to understand the real antithesis between potential and kinetic. He laid down the books, paced up and down the room thoughtfully, and beheld the whole concrete theory of interrelation embodying itself visibly before his very eyes. At last he grew fired with the stupendous grandeur of his own conception, seized a quire of foolscap, and sat down eagerly at the

table to give written form to the splendid phantom that was floating before him in so distinct a fashion. He would make a great name, for Hetty's sake; and, when he had made it, his dearest reward would be to know that Hetty was proud of him.

Hour after hour he sat and wrote, as if inspired, at his little table. The landlady knocked at the door to tell him dinner was ready, but he would have none of it, he said; let her bring him up a good cup of strong tea and a few plain biscuits. So he wrote and wrote in feverish haste, drinking cup after cup of tea, and turning off page after page of foolscap, till long past midnight. The whole theory had come up so distinctly before his mind's eye, under the exceptional exaltation of first love, and the powerful stimulus of the day's excitement, that he wrote it off as though he had it by heart; omitting only the mathematical calculations, which he left blank, not because he had not got them clearly in his head, but because he would not stop his flying pen to copy them all out then and there at full length, for fear of losing the main thread of his argument. When he had finished, about forty sheets of foolscap lay huddled together on the table before him, written in a hasty hand, and scarcely legible; but they contained the first rough draft and central principle of that immortal work, the "Transcendental Dynamics."

Arthur Greatrex rose from the table, where his grand discovery was first formulated, well satisfied with himself and his theory, and fully determined to submit it shortly to the critical judgment of the Royal Society. As he took up his bedroom candle, however, he went over to the mantelpiece to kiss Hetty's photograph, as he always did (for even men of science are human) every evening before retiring. He lifted the portrait reverently to his lips, and was just about to kiss it, when suddenly in the mirror before him he saw the same horrible mocking face which had greeted him so unexpectedly that morning on the

hospital staircase. It was a face of inhuman devilry; the face of a medieval demon, a hideous, grinning, distorted ghoul, a very caricature and insult upon the features of humanity. In his dismay he dropped the frame and the photograph, shivering the glass that covered it into a thousand atoms. Summoning up all his resolution, he looked again. Yes, there was no mistaking it: a face was gibing and jeering at him from the mirror with diabolical ingenuity of distorted hideousness; a disgusting face which even the direct evidence of his senses would scarcely permit him to believe was really the reflection of his own features. It was overpowering, it was awful, it was wholly incredible; and, utterly unmanned by the sight, he sank back into his easy-chair and buried his face bitterly between the shelter of his trembling hands.

At that moment Arthur Greatrex felt sure he knew the real meaning of the horror that surrounded him. He was going mad.

For ten minutes or more he sat there motionless, hot tears boiling up from his eyes and falling silently between his fingers. Then at last he rose nervously from his seat, and reached down a volume from the shelf behind him. It was Prang's "Treatise on the Physiology of the Brain." He turned it over hurriedly for a few pages, till he came to the passage he was looking for.

66

Ah, I thought so," he said to himself, half aloud: "Premonitory symptoms: facial distortions; infirmity of the will; inability to distinguish muscular movements.' Let's see what Prang has to say about it. 'A not uncommon concomitant of these early stages'-Great heavens, how calmly the man talks about losing your reason!' is an unconscious or semi-conscious tendency to produce a series of extraordinary facial distortions. At times, the sufferer is not aware of the movements thus initiated; at other times they are quite voluntary, and are accompanied by bodily gestures of contempt or derision for passing

strangers.' Why, that's what must have happened with that boy this morning! 'Symptoms of this character usually result from excessive activity of the brain, and are most frequent among mathematicians or scholars who have overworked their intellectual faculties. They may be regarded as the immediate precursors of acute dementia.' Acute dementia! Oh, Hetty! Oh, heavens! What have I done to deserve such a blow as this?"

He laid his face between his hands once more, and sobbed like a broken-hearted child for a few minutes. Then he turned accidentally towards his tumbled manuscript. "No, no," he said to himself, reassuringly; "I can't be going mad. My brain was never clearer in my life. I couldn't have done a piece of good work like that, bristling with equations and figures and formulæ, if my head was really giving way. I seemed to grasp the subject as I never grasped it in my life before. I never worked so well at Cambridge; this is a discovery, a genuine discovery. It's impossible that a man who was going mad could ever see anything so visibly and distinctly as I see that universal principle. Let's look again at what Prang has to say upon that subject."

He turned over the volume a few pages further, and glanced lightly at the contents at the head of each chapter, till at last a few words in the title struck his eye, and he hurried on to the paragraph they indicated, with feverish eagerness. As he did so, these were the words which met his bewildered gaze.

"In certain cases, especially among men of unusual intelligence and high attainments, the exaltation of incipient madness takes rather the guise of a scientific or philosophic enthusiasm. Instead of imagining himself the possessor of untold wealth, or the absolute despot of a servile people, the patient deludes himself with the belief that he has made a great discovery or lighted upon a splendid generalization of the deepest and most universal importance. He

sees new truths crowding upon him with the most startling and vivid objectivity. He perceives intimate relations of things which he never before suspected. He destroys at one blow the Newtonian theory of gravitation; he discovers obvious flaws in the nebular hypothesis of Laplace; he gives a scholar's-mate to Kant in the very fundamental points of the 'Critique of Pure Reason.' The more serious the attack, the more utterly convinced is the patient of the exceptional clearness of his own intelligence at that particular moment. He writes pamphlets whose scientific value he ridiculously over-estimates; and he is sure to be very angry with any one who tries rationally to combat his newly found authority. Mathematical reasoners are especially liable to this form of incipient mental disease, which, when combined with the facial distortions already alluded to in a previous section, is peculiarly apt to terminate in acute dementia."

"Acute dementia again!" Arthur Greatrex cried with a gesture of horror, flinging the book from him as if it were a poisonous serpent. "Acute dementia, acute dementia, acute dementia; nothing but acute dementia ahead of me, whichever way I happen to turn. Oh, this is too horrible! I shall never be able to marry Hetty! And yet I shall never be able to break it to Hetty! Great heavens, that such a phantom as this should have risen between me and paradise only since this very morning!"

In his agony he caught up the papers on which he had written the rough draft of his grand discovery, and crumpled them up fiercely in his fingers. "The cursed things!" he groaned between his teeth, tossing them with a gesture of impatient disgust into the waste-paper basket; "how could I ever have deluded myself into thinking I had hit offhand upon a grand truth which had escaped such men as Helmholtz, and Mayer, and Joule, and Thomson! The thing's preposterous upon the very face of it; I must be going mad, indeed, ever to have dreamt of it!”