The house which Mrs. Arb decided to enter had a full, but not an extraordinary, share of experience of human life. There were three floors of it. On the ground floor lived a meat-salesman, his wife and three children, the eldest of whom was five years of age. Three rooms and some minute appurtenances on this floor. The meat-salesman shouted and bawled cheap bits of meat in an open-fronted shop in Exmouth Street during a sixty-hour week which ended at midnight on Saturday. He possessed enormous vocal power. All the children out of naughtiness had rickets. On the first floor lived a french-polisher, his wife and two children, the eldest of whom ............