Going quietly to the apparatus above referred to, the junior sorter looked out at the window and lowered the net, which, instead of lying flat against the van, now projected upwards of three feet from it. As he did so something flashed about his feet. He leaped aside and gave a shout. Fearful live creatures were sometimes sent by post, he knew, and serpents had been known before that to take an airing in Post-Office vans as well as in the great sorting-room of St. Martin's-le-Grand! A snake had only a short time before been observed at large on the floor of one of the night mail sorting carriages on the London and North-Western Railway, which, after a good deal of confusion and interruption to the work, was killed. This flashed into his mind, but the moment was critical, and the junior sorter had no time to indulge in private little weaknesses. Duty required prompt action. About a hundred yards from the approaching station, a mail-bag hung suspended from a massive wooden frame. The bag weighed nearly eighty pounds. It was fitted so exactly in its place, with reference to the approaching train, that its neck was caught to a nicety in a fork, which swept it with extreme violence off its hook, and laid it in the net. This process, reversed, had been at the same moment performed on the bag given out by the train. To prevent the receiving and delivering apparatus from causing mutual destruction in passing each other, the former is affixed to the upper, the latter to the lower, part of the van. There was a rather severe jerk. The junior sorter exerted his powers, raised the net, and hauled in the bag, while the train with undiminished speed went thundering on. "What was that I saw on the floor?" asked the junior sorter, looking anxiously round as he set the mail-bags down. "Only two white mice," replied Bright, who was busy in front of his pigeon-holes. "They nibbled themselves out of a parcel under my very nose. I made a grab at 'em, but they were too quick for me." "Isn't it strange," observed the registered-letter clerk, sealing one of the bags which had just been made up, "that people _will_ break the law by sending live animals through the post?" "More strange, it seems to me," returned Bright, as he tied up a bundle of letters, "that the people who do it can't pack 'em properly." "There's the next station," said the junior sorter, proceeding once more to the net.