At night they advanced in great masses for hand-to-hand fights, which took place in the stream. The carnage was terrible. The poisoning tricks had worked our fellows up to a high pitch, and they fought with reckless bravery. We managed to explode a mine and caught their reserves. Then their artillery opened on the stream and we rushed out to meet them. They didn't get "Suicide Bridge" from us, but the losses were heavy on both sides and the stream itself was red with blood. SUICIDE SIGNAL BOX. [Illustration: "SUICIDE SIGNAL BOX."] The sketch of "Suicide Signal Box" takes us to a spot on the railway line close to the scene of one of the biggest battles of the war. Its chief feature is the dug-out actually under the line itself. Of course the line was not being used across the top of the dug-out. As a matter of fact, at this time a railway truck was run up to the edge nightly propelled by forty of our men, bringing filled sandbags for making a barricade across the line, thus affording the relieving party cover when getting out of trench. The position was known to us as "Suicide Signal Box," because it was so dangerous as to be almost suicidal to cross the line, as was necessary to reach the road only five yards beyond. The ruined building is the signal box itself, protected by the line of sandbags in front of telegraph poles and shelled trees. A most curious fact about this place was that, though it was being continually shelled by the enemy and their maxim guns were trained day and night on this very important position to catch troops coming up as relieving parties, it was a wonderful place in which to hear the birds sing. The larks trilled at every dawn to herald the coming day, and never seemed in the least disturbed by the roar of artillery. In the left-hand corner of the sketch will be noticed the firing platform, over which is the "funk hole," so called from its being the refuge to run to when the shells arrive. The soldier buries his head like the ostrich--only he beats the ostrich by getting his shoulders in as well--and then feels fairly secure. A MILE-AND-A-HALF OF HELL. [Illustration: A GHASTLY PROMENADE.]