The French Territorials took up a position to the south of the town, and there prepared to oppose the German advance. For a time they held their own; but they were hopelessly outnumbered, and were soon in peril of being cut off. Two of their batteries had been captured, and they were nearly surrounded when a British detachment came to their rescue. Where it came from we have never been told, but probably it had been guarding the lines of communication at Amiens. It arrived in the very nick of time, and was able to hold the enemy, while all that was left of the French Territorials got safely away. [Illustration] Without delay the Germans pushed on towards Amiens. Meanwhile the railway officials of that city were sending all the engines and carriages in the station southwards, so that the enemy might not seize them. I have already told you that the capture of the railway at Arras had made Boulogne and Calais useless as bases of supply for our army, and that the seizure of the line at Amiens would cut it off from all the Channel ports. A new British base had to be chosen, and St. Nazaire,[66] at the mouth of the river Loire, was selected, an advanced base being established at Le Mans, on the Sarthe, about fifty miles to the north-east of the port. Outside Amiens there was a fierce artillery duel; but when the Allies had fired their last shell they were forced to retreat, and the city surrendered. Between nine and ten on the morning of 31st August the war-stained German soldiers poured into the place, but by evening they were all out again, following up the pursuit. The retreating French blew up the bridges across the Somme, and endeavoured in this and other ways to delay the German advance. Amiens is a busy town of cotton and woollen mills, and contains one of the most glorious Gothic cathedrals in all Christendom. The western front is wonderfully adorned with reliefs and statues, and double rows of medallions representing scenes from Holy Scripture. John Ruskin, the great writer of art, calls these carvings "the Bible of Amiens." Happily the Germans were advancing so hurriedly that they had no time to do any mischief to this miracle of architecture. [Footnote 64: _Leel_, 26 miles north-north-east of Arras, and 155 miles by rail north by east of Paris.] [Footnote 65: _Am´e-enz_, 84 miles north of Paris, on the Somme.] [Footnote 66: _San Nah-zair´_, 40 miles west of Nantes.] CHAPTER XVII. THE FRENCH RETREAT.