His humor did not amuse me.  I could see that in relating his delusion he was again somewhat disturbed.  His concluding smile was positively ghastly, and his eyes had resumed something more than their old restlessness; they shifted hither and thither about the room with apparent aimlessness and I fancied had taken on a wild expression, such as is sometimes observed in cases of dementia.  Perhaps this was my own imagination, but at any rate I was now persuaded that my friend was afflicted with a most singular and interesting monomania.  Without, I trust, any abatement of my affectionate solicitude for him as a friend, I began to regard him as a patient, rich in possibilities of profitable study.  Why not?  Had he not described his delusion in the interest of science?  Ah, poor fellow, he was doing more for science than he knew:  not only his story but himself was in evidence.  I should cure him if I could, of course, but first I should make a little experiment in psychology—­ nay, the experiment itself might be a step in his restoration.

“That is very frank and friendly of you, Bartine,” I said cordially, “and I’m rather proud of your confidence.  It is all very odd, certainly.  Do you mind showing me the watch?”

He detached it from his waistcoat, chain and all, and passed it to me without a word.  The case was of gold, very thick and strong, and singularly engraved.  After closely examining the dial and observing that it was nearly twelve o’clock, I opened it at the back and was interested to observe an inner case of ivory, upon which was painted a miniature portrait in that exquisite and delicate manner which was in vogue during the eighteenth century.

“Why, bless my soul!” I exclaimed, feeling a sharp artistic delight—­ “how under the sun did you get that done?  I thought miniature painting on ivory was a lost art.”

“That,” he replied, gravely smiling, “is not I; it is my excellent great-grandfather, the late Bramwell Olcott Bartine, Esquire, of Virginia.  He was younger then than later—­about my age, in fact.  It is said to resemble me; do you think so?”

“Resemble you?  I should say so!  Barring the costume, which I supposed you to have assumed out of compliment to the art—­or for vraisemblance, so to say—­and the no mustache, that portrait is you in every feature, line, and expression.”

No more was said at that time.  Bartine took a book from the table and began reading.  I heard outside the incessant plash of the rain in the street.  There were occasional hurried footfalls on the sidewalks; and once a slower, heavier tread seemed to cease at my door—­a policeman, I thought, seeking shelter in the doorway.  The boughs of the trees tapped significantly on the window panes, as if asking for admittance.  I remember it all through these years and years of a wiser, graver life.

Seeing myself unobserved, I took the old-fashioned key that dangled from the chain and quickly turned back the hands of the watch a full hour; then, closing the case, I handed Bartine his property and saw him replace it on his person.