First, every German resident in this country may be classed as a spy, for he is, at all times, ready to assist in the work of the official secret-agents of the Fatherland. The military spy is usually a man who has received thorough instruction in sketching, photography, and in the drafting of reports, and on arrival here, has probably set up in business in a small garrison town. The trade of jeweller and watchmaker is one of the most favoured disguises, for the spy can rent a small shop, and though he cannot repair watches himself, he can engage an unsuspecting assistant to do so. Therefore, to all intents and purposes, his business is a legitimate one. If he is a devout church or chapel-goer, and subscribes modestly to the local charities, he will soon become known, and will quickly number among his friends some military men from whom he can obtain information regarding movements of troops, and a-thousand-and-one military details, all of which he notes carefully in his reports, the latter being collected by a "traveller in jewellery," who visits him at regular intervals, and who makes payment in exchange. Every report going out of Great Britain is carefully tabulated and indexed by a marvellous system in Berlin. These, in turn, are compared, analysed and checked by experts, so that, at last, the information received is passed as accurate, and is then indexed for reference. Now the military spy also keeps his eyes and ears open regarding the officers of the garrison. If an officer is in financial difficulties, the fact is sent forward, and some money-lender in London will most certainly come to his assistance and thus ingratiate himself as his "friend." Again, there are wives of officers who are sometimes a little indiscreet, and in more than one known case blackmail has been levied upon the unfortunate woman, and then, suddenly, an easy way out of it all has been craftily revealed to her by a blackguard in German pay. From the wide-spread secret-service of Germany, nothing is sacred. The German General Staff laughs at our apathy, and boasts that it knows all about us, the military and civil population alike. In the archives of its Intelligence Department there are thousands upon thousands of detailed reports--furnished constantly throughout the past ten years--regarding the lives and means of prominent persons in England, with descriptions of their homes wherein, one day, the enemy hope to billet their troops. These unscrupulous men who act as "fixed-posts"--and it is no exaggeration to say that there are still hundreds in England alone, notwithstanding all official assurances to the contrary--have all gone through an elaborate system of training in signalling, in reducing messages to code, and in decoding them, in map-making, in the use of carrier-pigeons, and, in some cases, in the use of secret wireless.