Just as the men in the trenches in the winter months adapted their costume to suit the trying climate (rather to the horror of some military martinets out here!), so these weapons of trench warfare have been evolved by the men in the firing-line. The revival of bombing began when a British soldier, to while away an idle moment, put some high-explosive and a lighted fuse in a discarded bully-beef tin, and pitched it into the German trench opposite him. In his way the British soldier is as handy as the blue-jacket, and the long days of the winter monotony produced all kinds of inventions in the way of mortars and bombs, which led to the scientific development of this mode of warfare. A Territorial officer was discovered making all manner of ingenious bombs and trench appliances in his spare time. He was taken out of the trenches and installed in an empty school, and when last I heard of him had a regular factory turning out bombs for the firing-line. Bombing is very tricky work. Your bomb must be safe as long as it is in your possession. Nor must it be liable to explosion if dropped after the safety-catch has been removed. That is why bombs are provided with time-fuses. Some nicety of judgment is required to hurl them so that they will explode on impact or immediately afterwards. If the time-fuse has still a second or so to burn when the bomb falls in the enemy trench, a resolute man will pick it up and fling it back, with disastrous consequences to the bomber. Therefore bombers must be trained. The training is extremely simple, but it is essential, and I look forward to the time when every soldier who comes out to France from home will have gone through a course of bombing just as he has gone through a course of musketry. The work of experimenting with bombs and of training in bombing has claimed many victims in our army behind the firing-line, but the blood thus shed has not been spilt in vain, for by every account the bombing companies now attached to each brigade are of invaluable assistance.