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 by reason of the number of the troops employed and the unlimited use of heavy and field artillery in the warfare that constantly went on along the line of the trenches. In this part of their organization the Allies were inferior to the enemy and motor transport had to make up for their deficiencies. On one critical occasion it saved the war. We all remember how in 1916 the Germans concentrated their efforts upon Verdun. It may well be that one main reason for this was the inequality of the mechanism of supply of the combatants in that district. The Germans had ten strategic railways on their side. The French had but one second class railway and road communication. Yet their heroic defence was successful. The story was admirably told in an article in the Revue des deux Mondes in December last. Along the main road leading to Verdun the French organized a motor transport system which was a marvel. Two continuous lines of motor lorries moving in opposite directions operated day and night. Men stood all along the road with prepared rubble 34