The bibliography of espionage--German espionage--is a brief one, so far as books of value are concerned. First and foremost stand Stieber's Memoirs, which tell all that Stieber chose to tell--and that is a good deal. The work has been translated into French, but not into English. There is the "Indiscretions" of Wollheim, a book which gives some idea of the system, but is mainly concerned with incident. The Memoirs of Busch, Bismarck's friend, afford further light on the system, but only in a fragmentary way. "Military Espionage in Peace and War," by W.N. Klembovski, a Russian Staff Officer, is more a manual of what ought to be done by purely military spies than a book descriptive of the German system. "Espionage Militaire," by Lieutenant Froment of the French Army, is open to the same class of criticism, as is to a certain extent "Espionage," by N. de Chilly, though the last named is a more informative book. "The German Spy System in France," an English translation of Paul Lanoir's book on the subject, is a brief but well-compiled review of what Germany has accomplished in the way of espionage since 1870 in France, and although rather pessimistic in tone as regards French counter-measures, ranks as a work of value. As a rule "confessions" of spies may be disregarded, though they make good melodramatic reading. The nature of the subject is such that those who would tell the whole cannot, and those who can will not. Bearing in mind the effect of thorough espionage on the German nation as a whole, it is to be hoped that in the near future the whole system will be swept away, together with the form of government that gave it birth and room to grow. CHAPTER THIRTEEN. APPENDIX. Since the preceding pages were written, and as proofs are being passed for press, the following statement has been issued for publication by the Home Office with regard to British counter-espionage measures: "In view of the anxiety naturally felt by the public with regard to the system of espionage on which Germany has placed so much reliance, and to which attention has been directed by recent reports from the seat of war, it may be well to state briefly the steps which the Home Office, acting on behalf of the Admiralty and War Office, has taken to deal with the matter in this country. The secrecy which it has hitherto been desirable in the public interest to observe on certain points cannot any longer be maintained, owing to the evidence which it is necessary to produce in cases against spies that are now pending.