So far, so good, but the snake was not yet dead--we had only cut off a section of his tail. To be sure, he could not get about with his former vigor. The ship fires, which had continued through February, stopped, and one can count on his fingers the fires that broke out on ships after that date. Our theory had served its purpose--but who were the men higher up? When Paul Koenig had been taken into custody in late December, 1915, we had found in his house in West 94th Street an address book containing some hundreds of names of folk with whom he apparently did business. The memorandum book is mentioned elsewhere in this volume in detail, but the present case may show just what specific use we made of the catalogue of spies which the obliging Koenig had left in our hands. Among other entries was this: “Boniface during the day--3396 Worth--ask for Boniface at night 1993 Chelsea--Never home until 10:30 P. M.” We had gone systematically through the book, checking up our knowledge of each person mentioned, in order to see whether the trail of Koenig, von Papen, Boy-Ed and the Hamburg-American interests might not lead us to other unexpected outrages, and so we were seeking this Boniface who was “never home until 10:30 P. M.” For months he proved elusive, but not long after the arrest of the Hoboken bomb-manufacturers we located a certain Bonford Boniface. He had only a single room for lodgings, and we called there one day while he was known to be elsewhere and made a careful examination of its contents. Our first signal that Boniface might be off-color was the discovery of a file of clippings from newspapers describing the arrest of von Kleist and his crew. Apparently he was interested in German bombs. There was no evidence of the reason for his interest, however, and the detectives were about to ‘leave the room as they had found it when they ran across two letters signed “Karl Schimmel,” one postmarked Buenos Aires and one from Holland. Both were colorless messages asking how fortune was treating Boniface.