Strung out, with the bicycles in front, we went down the straight white road that ran toward the frontier. After an hour or two of steady going we began to notice signs of the retreat that had trailed through this section forty-eight hours before. We picked up a torn shoulder strap, evidently of French workmanship, which had 13 embroidered on it in faded red tape; and we found, behind the trunk of a tree, a knapsack, new but empty, which was too light to have been part of a German soldier's equipment. We thought it was French; but now I think it must have been Belgian, because, as we subsequently discovered, a few scattering detachments of the Belgian foot soldiers who fled from Brussels on the eve of the occupation--disappearing so completely and so magically--made their way westward and southward to the French lines, toward Mons, and enrolled with the Allies in the last desperate effort to dam off and stem back the German torrent. Also, in a hedge, was a pair of new shoes, with their mouths gaping open and their latchets hanging down like tongues, as though hungering for feet to go into them. But not a shred or scrap of German belongings--barring only the empty bottles--did we see. The marvelous German system, which is made up of a million small things to form one great, complete thing, ordained that never, either when marching or after camping, or even after fighting, should any object, however worthless, be discarded, lest it give to hostile eyes some hint as to the name of the command or the extent of its size. These Germans we were trailing cleaned up behind themselves as carefully as New England housewives. It may have been the German love of order and regularity that induced them even to avoid trampling the ripe grain in the fields wherever possible. Certainly, except when dealing out punishment, they did remarkably little damage, considering their numbers, along their line of march through this lowermost strip of Belgium. At Merbes-Ste.-Marie, a matter of six kilometers from Binche, we came on the first proof of seeming wantonness we encountered that day. An old woman sat in a doorway of what had been a wayside wine shop, guarding the pitiable ruin of her stock and fixtures. All about her on the floor was a litter of foul straw, muddied by many feet and stained with spilled drink. The stench from a bloated dead cavalry horse across the road poisoned the air. The woman said a party of private soldiers, straying back from the main column, had despoiled her, taking what they pleased of her goods and in pure vandalism destroying what they could not use.