I can recall with some difficulty the day when with my father in a room immediately below the bedroom in which my mother was confined he awaited the summons of the doctors to see his wife for the last time. It was a rainy day, the clouds were drifting across a dull November sky. Through an opening in the trees then leafless, the Hudson was visible, even then flaked with ice, while an early snow covered the sloping lawn and whitened the broad-limbed oaks. I remember indistinctly his leading me by the hand through the hallway up the stairs, and softly whispering to me to be quite still, entered the large room dimly lit where my mother, attended by a nurse and a doctor, lay on the white bed. I remember being kissed by her and then being led from the room by the nurse. My father doubtless lingered until all was over, and the dear associate of his life, whose tenderness and charity had made all who approached her grateful, whose genial and appreciative mind had supplied the stimulus of recognition he needed for his own studies, passed away. After that I seemed dimly to recall a period of extreme loneliness when I was left in charge of a private instructor, while my father, as I later learned, bewildered by his great loss, and temporarily driven into a sort of madness, wandered in an aimless track of travel over the United States. On his return the sharp recurrence to the scenes of his former happiness renewed the bitterness of his spirit, and he reluctantly concluded to abandon his home. His own thoughts had not as yet clearly formed any decision in his mind as to where he would go or what he would do. It was inevitable, however, that he should revert to his scientific investigations. He found in them a new solace and distraction, but even then his passion for research would not have sufficed to adequately meet his desperate desire to escape his grief, if in a rather singular manner there had not come to him an intimation of the possibilities of some sort of communication with my mother through these very investigations in electricity and magnetism in which he had been engaged. I had become quite inseparable from him. He found in me many suggestions in face and manner of my mother, and particularly he was interested in my peculiar lapses into meditation and introspection which in many ways suggested to him a similar habit in her. On one occasion when, as was his wont, before we finally left the old home at Irvington, he had taken me in the summer evenings to the top of the observatory, then situated about half a mile west of the Albany road, we had both been silently watching the sun sink into a bank of golden haze, and the black band of the Palisades passing underneath like a velvet zone of shadow, I turned to my father and in a sudden access of curiosity said: "Father, if mother had gone to the Sun, would she speak to us now with a ray of light?"