A few days after this interview in Washington two commonplace-looking gentlemen, dressed in civilian clothes, secretly boarded the American steamship _New York_. They were entered upon the passenger list as V. J. Richardson and S. W. Davidson. A day or two out an enterprising steward noticed that the initials on the pyjamas of one of these passengers differed from those of the name under which he was sailing and reported him to the captain as a suspicious character. The captain had a quiet laugh over this discovery, for he knew that Mr. Davidson was Rear-Admiral Sims, of the United States Navy, and that his companion who possessed the two sets of conflicting initials was Commander J. V. Babcock, the Admiral's _aide_. The voyage itself was an uneventful one, but a good deal of history was made in those few days that we spent upon the sea. Our ship reached England on April 9th; one week previously President Wilson had gone before Congress and asked for the declaration of a state of war with Germany. We had a slight reminder that a war was under way as we neared Liverpool, for a mine struck our vessel as we approached the outer harbour. The damage was not irreparable; the passengers were transferred to another steamer and we safely reached port, where I found a representative of the British Admiralty, Rear-Admiral Hope, waiting to receive me. The Admiralty had also provided a special train, in which we left immediately for London. Whenever I think of the naval situation as it existed in April, 1917, I always have before my mind two contrasting pictures--one that of the British public, as represented in their press and in their social gatherings in London, and the other that of British officialdom, as represented in my confidential meetings with British statesmen and British naval officers. For the larger part the English newspapers were publishing optimistic statements about the German submarine campaign. In these they generally scouted the idea that this new form of piracy really threatened in any way the safety of the British Empire. They accompanied these rather cheerful outgivings by weekly statistics of submarine sinkings; figures which, while not particularly reassuring, hardly indicated that any serious inroads had yet been made on the British mercantile marine. The Admiralty was publishing tables showing that four or five thousand ships were arriving at British ports and leaving them every week, while other tables disclosed the number of British ships of less than sixteen hundred tons and more than sixteen hundred tons that were going down every seven days. Thus the week of my arrival I learned from these figures that Great Britain had lost seventeen ships above that size, and two ships below; that 2,406 vessels had arrived at British ports, that 2,367 had left, and that, in addition, seven fishing vessels had fallen victims to the German submarines. Such figures were worthless, for they did not include