It was from the German government. By the "business at hand" they meant a new explosive and slow-burning powder that was to be used in the new type of fourteen-inch turret guns being made in Glasgow. Some of that explosive was in my possession. The fact that it was not discovered in my effects, nor was anything else incriminating found on me is because the Secret Agent who knows his business leaves nothing about; but he "plants" things, that is to say, leaves them in a safe deposit vault with the key in the hands of a person with power of attorney. By the "sample" in the letter was meant a sample of the explosive. The "other business at hand" was spoken of as of tremendous importance, more vital to the safeguards of Britain than the other points mentioned in the letter. There were sub-agents working at Cromarty. I did not know who they were; they simply made their reports to me, signing their German Secret Service number. I took up their points with Berlin. Well, the "other business in hand" was to put a certain British army officer under a monthly retaining fee of 100£ for which in the event of war he was to commit an act of unspeakable treason and treachery on a certain harbor defense. I had judged my jurymen right, for they were very little impressed by this letter. It was all too vague and even the fluent language of a Crown Prosecutor does not impress a hard-headed Scotchman. I was feeling in high spirits indeed, when I saw one of the attendants approach Sir Anderson and deliver a document that had been handed into court. I at once recognized it and my heart dropped into my shoes. The Solicitor General read the document and smiled. I knew they had me. In addressing the court the Solicitor General produced two pieces of thin paper--the same that had been brought in on the previous afternoon. "I have got to show the court," he said impressively, "the most deadly code ever prepared against the safeguards of Great Britain." And it certainly was. It contained the name of every vessel in the British Navy, every naval base, fortification and strategic point, in Great Britain. There were over ten thousand names and opposite each was written a number. For example, the battle cruiser _Queen Mary_ was number 813. As I have confessed, I am superstitious. And have I not reason to be? It was the Burroughs & Wellcome letter that got me caught in the first place. And my secret code was written in a book issued for the use of physicians by Burroughs & Wellcome! Both times the B & W mark was upon me.