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 alone is sufficiently known and analyzed." The events from military history mentioned in this work are cited simply as proofs of certain phenomena; the proper analysis of these proofs must be left to the student.

The applicatory method is used frequently by preference as the system of instruction, but its creator, General von Verdy du Vernois, considers it merely a complement of the deductive method, on which it is predicated and based. "The weakness of the whole applicatory system of instruction lies in the fact that a textbook based upon it, although written by a master hand, can portray only isolated examples, and that these, studied again and again, soon lose their value in the same manner as a maneuver terrain that has become too well known. For, although we ordinarily find principles represented in a connected form, this method of instruction can only convey them in a fragmentary manner in connection with the details of the events described." The success of the applicatory method depends largely upon the individuality of the instructor, and owes its charm to the personal intercourse between teacher and pupil. Only an expert, who possesses a thorough professional knowledge, who is master of his subject, and who has the faculty of presenting it skillfully, will be able to produce imaginary scenes which faithfully represent reality and are free from objectionable features. By constant practice with specific cases, under the most diverse situations, the nature of war may in this way be taught and initiative developed as well as facility acquired in issuing appropriate, clear, and concise orders. One danger of using nothing but the applicatory method must be noted. The instructor, as representative of a definite theory, finds it comparatively easy to select the conditions governing a specific case in such a way that the theory which he represents neces-*