It must be repeated in a definite cycle in each large formation, so that eventually all superior officers may have the opportunity of becoming practically acquainted with these operations, and also that the troops may become familiarized with the modern commissariat system; but since such practical exercises must always be somewhat incomplete, they must also be worked out beforehand theoretically. It is not at all sufficient that the officers on the General Staff and the Intendants have a mastery of these subjects. The rank and file must be well up in them; but especially the officers who will be employed on the supply service--that is to say, the transport officers of the standing army and those officers on the furlough establishment, who would be employed as column commanders. The practical service in the transport battalions and the duties performed by the officers of the last-mentioned category who are assigned to these battalions are insufficient to attain this object. They learn from these mainly practical duties next to nothing of the system as a whole. It would therefore be advisable that all these officers should go through a special preliminary course for this service, in which the whole machinery of the army movements would be explained to them by the officers of the General Staff and the higher transport service officers, and they would then learn by practical examples to calculate the whole movement of the columns in the most varied positions with precise regard to distances and time. This would be far more valuable for war than the many and often excessive trainings in driving, etc., on which so much time is wasted. The technical driver's duty is very simple in all columns and trains, but it is not easy to know in each position what is the crucial point, in order to be able, when occasion arises, to act independently. While, therefore, on the one hand, driving instruction must be thoroughly carried out, on the other hand, the institution of a scientific transport service course, in which, by practical examples out of military history, the importance of these matters can be explained, is under present circumstances an absolute necessity. I have shown elsewhere how necessary it is to proceed absolutely systematically in the arrangements for relays of supplies, since the operative capabilities of the army depend on this system. Its nature, however, cannot be realized by the officers concerned like a sudden inspiration when mobilization takes place; knowledge of its principles must be gained by study, and a proof of the complete misapprehension of the importance which this service has attained under modern conditions is that officers are supposed to be able to manage it successfully without having made in peace-time a profound scientific study of the matter.