From November 1967, pages 49-52

In early January 1939 the Swedish-American liner MS Drottningholm carried a short message across the stormy sea from Copenhagen to New York. This message symbolized the steady transfer of nuclear discoveries from Europe to the US that had been going on during the Hitler years.

Although these transfers were fateful for the US and the rest of the world, the act of relaying this particular message was simple: a few words spoken by Otto Frisch to Niels Bohr on the pier in Copenhagen and a few words spoken to Enrico Fermi and me by Bohr on the pier in New York. As a junior participator in the events that occurred then and in subsequent months, I shall relate the activities that led to the publication of a Physical Review paper by Bohr and me. In this paper we summarized the thoughts expressed in the message:...

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