grandmother had left me comparatively well, she returned to my room very late and, seeing me struggling for breath, "Oh, my poor boy," she exclaimed, her face quivering with sympathy, "you are in dreadful pain." She left me at once; I heard the outer gate open, and in a little while she came back with some brandy which she had gone out to buy, since there was none in the house. Presently I began to feel better. My grandmother, who was rather flushed, seemed "put out" about something, and her eyes had a look of weariness and dejection. "I shall leave you alone now, and let you get the good of this improvement," she said, rising suddenly to go. I detained her, however, for a kiss, and could feel on her cold cheek something moist, but did not know whether it was the dampness of the night air through which she had just passed. Next day, she did not come to my room until the evening, having had, she told me, to go out. I considered that this shewed a surprising indifference to my welfare, and I had to restrain myself so as not to reproach her with it. As my chokings had persisted long after any congestion remained that could account for them, my parents asked for a consultation with Professor Cottard. It is not enough that a physician who is called in to treat cases of this sort should be learned. Brought face to face with symptoms which may or may not be those of three or four different complaints, it is in the long run his instinct, his eye that must decide with which, despite the more or less similar appearance of them all, he has to deal. This mysterious gift does not imply any superiority in the other departments of the intellect, and a creature of the utmost vulgarity, who admires the worst pictures, the worst music, in whose mind there is nothing out of the common, may perfectly well possess it. In my case, what was physically evident might equally well have been due to nervous spasms, to the first stages of tuberculosis, to asthma, to a toxi-alimentary dyspnoea with renal insufficiency, to chronic bronchitis, or to a complex state into which more than one of these factors entered. Now, nervous spasms required to be treated firmly, and discouraged, tuberculosis with infinite care and with a "feeding-up" process which would have been bad for an arthritic condition such as asthma, and might indeed have been dangerous in a case of toxi-alimentary dyspnoea, this last calling for a strict diet which, in return, would be fatal to a tuberculous patient. But Cottard's hesitations were brief and his prescriptions imperious. "Purges; violent and drastic purges; milk for some days, nothing but milk. No meat. No alcohol." My mother murmured that I needed, all the same, to be "built up", that my nerves were already weak, that drenching me like a horse and restricting my diet would make me worse. I could see in Cottard's eyes, as uneasy as though he were afraid of missing a train, that he was