Nikola had never met my American friends whom he mentioned in his invitation, but he had heard a great deal about them. My classmate at Columbia, A. V. Williams Jackson, now the distinguished Orientalist and professor at Columbia University, was at that time at the University of Halle, studying with the great Orientalist, Professor Geltner. He had visited me in Berlin and I returned his visit by spending with him a week-end at Halle. This was shortly before the great Kaiser’s death. Jackson’s mother and two sisters were there on a longer visit, and for two days I felt that I was back in New York again, and I was supremely happy. On the way back to Berlin I could not dismiss from my mind the memory of my mother’s words: “You must marry an American girl if you wish to remain an American, which I know you do.” Ever since my return from Halle, I could hear these words ringing in my ear no matter where I was, in my lodgings, in the laboratory, in the lecture-rooms, or even in Nikola’s store. Nikola had read my thoughts, and when he mentioned my American friends he meant Jackson and his mother and sisters at Halle. Well, they came, they saw, and they conquered. One of Jackson’s sisters went to Italy during that spring and I followed; she returned to Berlin to join her mother and I followed; she went to the island of Norderney, in the North Sea, to spend a part of the summer season, and I followed. The Faraday-Maxwell electromagnetic theory and the Hertzian experiments, my research in physical chemistry, and the learned essays of Helmholtz and Willard Gibbs, and of all the other fathers of physical chemistry, disappeared from my mind as if they had never been there. The only problem that could find a place there was the question: Will she accept me? She finally did, and I made a bee-line for New York, in order to find out how soon I could get a job there. The Columbia authorities were organizing at that time a new department in the School of Mines, the Department of Electrical Engineering, and they were glad to see me and consult me about it. It was to start its work a year from that time, that is, the end of September, 1889. I was offered a position in it as “Teacher of Mathematical Physics in the Department of Electrical Engineering.” A very long title, indeed, but such it was and an interesting bit of history is attached to it. I accepted gladly and hurried back to Europe proud as a peacock. My fiancée and her family met me in London and I was married in the Greek church, according to the rites of the Orthodox faith, the faith of my mother and of all my ancestors.