Also it includes the art of making attractive models of guns, camps, trenches and the like that are not bona-fide guns, camps, or trenches at all, so that the aeroplane bomb-dropper and the aeroplane observer may waste his time and energies and the enemy gunfire be misdirected. In Italy I saw dummy guns so made as to deceive the very elect at a distance of a few thousand feet. The camouflage of concealment aims either at invisibility or imitation; I have seen a supply train look like a row of cottages, its smoke-stack a chimney, with the tops of sham palings running along the back of the engine and creepers painted up its sides. But that was a flight of the imagination; the commonest camouflage is merely to conceal. Trees are brought up and planted near the object to be hidden, it is painted in the same tones as its background, it is covered with an awning painted to look like grass or earth. I suppose it is only a matter of development before a dummy cow or so is put up to chew the cud on the awning. But camouflage or no camouflage, the bulk of both the French and British forces in the new won ground of the great offensive lay necessarily in the open. Only the big guns and the advanced Red Cross stations had got into pits and subterranean hiding places. The advance has been too rapid and continuous for the armies to make much of a toilette as they halted, and the destruction and the desolation of the country won afforded few facilities for easy concealment. Tents, transport, munitions, these all indicated an army on the march--at the rate of half a mile in a week or so, to Germany. If the wet and mud of November and December have for a time delayed that advance, the force behind has but accumulated for the resumption of the thrust. 3