the American had passed, had run for the open Pacific; the _Glasgow_, hot on her trail, engaged her off the Chilean coast five days later and sank her, leaving only the _Emden_ and _Karlsruhe_ at large. The _Karlsruhe_ disappeared. The last lone member of the pack was hunted over the seas for months, and finally was beached, but long before her activities became public the necessity for supplying the German ships expired, from the simple elimination of German ships to supply. Captain Boy-Ed's first enterprise had been frustrated by the British navy and he turned to other and more sinister occupations. Buenz, Koetter and Hachmeister were sentenced to eighteen months in Atlanta, and Poeppinghaus to a year and a day--terms which they did not begin to serve until 1918.[1] FOOTNOTE: [1] Dr Buenz' case is an enlightening example of the use made by German agents in America of the law's delays. He was sentenced in December, 1915, for an offence committed in September, 1914. He at once appealed his case to the higher courts, going freely about meanwhile on bail furnished by the Hamburg American Line. In March, 1918, the Supreme Court of the United States, to which his case had finally been pressed, denied his appeal. His attorneys at once placed before President Wilson, through Attorney-General Gregory, a request for a respite, or commutation of his sentence, which the President, on April 23, 1918, denied. Buenz pleaded the frailty of his 79 years--which had not prevented him from keeping his social engagements while his appeal was pending. CHAPTER IV THE WIRELESS SYSTEM The German Embassy a clearing house--Sayville--Germany's knowledge of U. S. wireless--Subsidized electrical companies--Aid to the raiders--The _Emden_--The _Geier_--Charles E. Apgar--The German code. The coördination of a nation's fighting forces depends upon that nation's system of communication. In no previous war in the world's history has a general staff known more of the enemy's plans. We look back almost patronizingly across a century to the semaphore which transmitted Napoleon's orders from Paris to the Rhine in three hours; we can scarcely realize that if the report of a scout had ever got through to General Hooker, warning him that a suspicious wagon train had been actually sighted a few miles away, Stonewall Jackson's flanking march at Chancellorsville would have been checked in its first stages. In this greatest of all wars a British battery silences a German gun within two minutes after the allied airman has "spotted" the Boche. The air is "Any Man's Land." What lies beyond the hill is no longer the great hazard, for the wireless is flashing.