of the German leaders' assurance that we could be starved into submission.
By the courtesy of the Admiralty and of the Ministry of Information, use was regularly made of wireless telegraphy as a means of disseminating information, combating false German statements, and influencing German opinion through neutral newspapers and public opinion.
Many other agencies for introducing propagandist material into enemy countries were organised by Mr. Guest, whose work demanded extraordinary patience and perseverance. He experimented with many methods, and, despite the vigilance of the Germans, the inflow into Germany increased. Some of the methods can never be revealed, but it is permissible to hint that, for instance, among foreign workmen of a certain nationality who went into Germany each morning and returned each evening there might be some to whom propagandist work was not uncongenial. And, of course, all secret agents were not necessarily Allies or neutrals. Somehow, huge masses of literature were posted in Germany to selected addresses from which the German postal revenues derived no benefit. Easiest of all were certain obvious channels left wholly or parti-
