Against this thin wall dashed the full tide of the German advance as it swept on in the wake of the Nineteenth Corps. It was a long and hard fight in which the enemy had heavy losses, especially in front of Pœuilly, where considerable sheets of wire lay in front of the position of the 6th Northumberland Fusiliers. It was a most gallant affair--gallant on both sides. Their Colonel, Robinson, laid out his machine-guns in the long grass upon each side of this wire and enfiladed the German line with most murderous results. In the south the 4th Northumberland Fusiliers were attacked in front and on the right flank, and the pressure was so great that they had to abandon Caulaincourt, which was then recaptured and again abandoned by the 6th Northumberland Fusiliers from the supporting line. The enemy, with his usual wile, telephoned from the mausoleum, a central building, that reinforcements be sent to that point. Upon asking the name of the officer and getting no reply, General Riddell, in local command, {97} turned on five batteries of 18-pounders and blew the mausoleum to pieces. At Poeuilly also there had been two successful counter-attacks, but the enemy was swarming round the southern flank in great numbers, and the river, which is not more formidable than an average South of England trout stream, was of little use as a protection. An important point named Nobescourt Farm, lying near the junction of brigades, had fallen into the hands of the enemy, and the village of Poeuilly was also taken. By evening the Fiftieth Division had done its work, however, as it had held up the pursuit and enabled the Nineteenth Corps to reach the line of the Somme without severe pressure. That night they received orders to withdraw, which were carried out in the morning of March 23, Martin's 149th Brigade in the south making a show of fighting in order to cover the movements of their companions in the north who were moving over a perfectly flat plain from Mons to Brie. Finally, General Riddell destroyed Tertry bridge and dropped back to St. Christ. During all these operations the German infantry were moving slowly forward in successive lines of skirmishers, about a thousand yards from the British, who retired in leisurely fashion, continually turning and holding them up, so that the whole spectacle was exactly that of a well-ordered field-day. When the main body had reached the bridges, a single company of the 5th Northumberland Fusiliers lay out in the higher ground, under the leadership of Captain Proctor, who received the D.S.O. for his able conduct of the operation. This company held up a brigade for two hours, and then, their comrades being safely across, they withdrew in their turn, leaving half their number behind {98} them. Every one being across, both the St. Christ and Brie bridges were blown up. The latter was a brand-new construction and was in charge of an American officer of engineers who distinguished himself by his cool