"My God," he said weakly, sinking into a chair, "how can you know these things?" "It is easy to know what one sees," I said, and tried to draw him out about his past, but the words seemed to stick in his throat. "I will come back and talk to you again," he said, and he went away without giving me his name or any revelation of his life. Several times he called during subsequent weeks, and gradually seemed to take on a measure of confidence in my presence. He would talk freely of his physical condition, which seemed to cause him much anxiety. He even insisted upon my making the most careful examination of all his organs, especially of his eyes, which, he said, had troubled him at various times. Upon making the usual tests, I found that he was suffering from a most uncommon form of colour blindness, that seemed to vary in its manifestations, and to be connected with certain hallucinations or abnormal mental states which recurred periodically, and about which I had great difficulty in persuading him to speak. At each visit I took occasion to study his hand anew, and each reading of the palm gave me stronger conviction that here was a life mystery that would abundantly repay any pains taken in unravelling it. While I was in this state of mind, consumed with a desire to know more of my unhappy acquaintance and yet not daring to press him with questions, there came a tragic happening that revealed to me with startling suddenness the secret I was bent on knowing. One night, very late,—in fact it was about four o'clock in the morning,—I received an urgent summons to the bedside of a man who had been shot. As I bent over him I saw that it was my friend, and for the first time I realized that he was a man of wealth and position, for he lived in a beautifully furnished house filled with art treasures and looked after by a retinue of servants. From one of these I learned that he was Richard Burwell, one of New York's most respected citizens—in fact, one of her best-known philanthropists, a man who for years had devoted his life and fortune to good works among the poor. But what most excited my surprise was the presence in the house of two officers, who informed me that Mr. Burwell was under arrest, charged with murder. The officers assured me that it was only out of deference to his well-known standing in the community that the prisoner had been allowed the privilege of receiving medical treatment in his own home; their orders were peremptory to keep him under close surveillance. Giving no time to