One of the submarines, the U-117, built as a mine layer, planted 46 of the 58 mines laid along our shores; four others were merchant subs of the Deutschland type, including the Deutschland itself, which had twice previously visited this country on ostensibly friendly missions. Though the subs encountered a few victims on the way over or back, most of the ships were destroyed in the shallower waters within 200 miles of the American and Canadian coast. The fishing was better close in. Naval Intelligence knew, through Admiral Sims’ office in London, just when each submarine left Kiel, what its probable destination was, and its approximate arrival date. The Navy could not broadcast this information, lest U-boat captains learn they were expected, but took appropriate defense measures. Even so, each submarine traveled directly to its destination, carried out its mission. U-boats operated almost with immunity from Newfoundland to the Virginia capes. Twice American men of war passed over submerging craft so close as almost to ram them. The U-151 worked at cutting cables for three days, near enough to New York City that the crew could see the lights of Broadway at night. The U-115, lying off the Virginia capes, came to the surface one afternoon just in time for its periscope to disclose a cruiser, two destroyers and a Navy tug a mile away, peacefully returning from routine target practice, entirely unaware that the U-boat was lurking in the vicinity. The submarines got a poor press that summer, not only for reasons of military secrecy, but because more stirring news held the attention of the public. The AEF was beginning to see action in France. Still headlines flashed occasionally as censorship was raised, or survivors brought in stories. From the Philadelphia Evening Bulletin during this period: “Hun U-boats Raid New Jersey coast—Schooner Edward H. Cole Attacked by two Submarines, Destroyed—Two Attacked Off New England—Atlantic Ports Closed”—and the story, under New York date line: “Germany has carried her unrestricted submarine warfare to this side of the ocean—at least five vessels sunk—submarine chasers ordered out from Cape May—Coast Guard stations on special lookout—marine insurance companies announce sharp increase in rates.” News Flash—“Wireless report from passenger steamer Carolina says she is under attack”—The Carolina is sunk, 300 survivors are landed at Barnegat Bay, 19 at Lewes Del., 30 at Atlantic City, others picked up in open boats. [Illustration: On this map of actual ship sinkings and mine layings in 1918 is superimposed a sketch of the area which a handful of modern patrol blimps might cover.]