There can be but one answer,--Emigration. For the last century, common sense, urged by common necessity, directed the stream of this emigration to the great outlying regions of the western world. North America was the chief recipient. Since the conquest of Canada, annual thousands had directed their emigration to the British possessions: the conquest of the Cape has drawn a large body of settlers to its fine climate; but Australia remained, and remains for the grand future field of British emigration. The subject has again come before the British public with additional interest. The Irish famine, the British financial difficulties, and the palpable hazard of leaving a vast pauperism to grow up in ignorance, have absolutely compelled an effort to relieve the country. A motion has just been made in Parliament by Lord Ashley, giving the most startling details of the infant population; and demanding the means of sending at least its orphan portion to some of those colonial possessions, where they may be trained to habits of industry, and have at least a chance of an honest existence. We shall give a few of these details, and they are of the very first importance to humanity. On the 6th of June Lord Ashley brought in a resolution, "That it is expedient that means be annually provided for the voluntary emigration, to some one of her Majesty's colonies, of a certain number of young persons of both sexes, who have been educated in the schools, ordinarily called 'ragged schools,' in and about the metropolis." In the speech preparatory to this resolution, a variety of statements were made, obtained from the clergy and laity of London. It was ascertained that the number of children, either deserted by their parents, or sent out by their parents to beg and steal, could not be less than 30,000 in the metropolis alone. Their habits were filthy, wretched, and depraved. Their places of living by day were the streets, and by night every conceivable haunt of misery and sin. They had no alternative but to starve, or to grow up into professional thieves, perhaps murderers. Of the general population, the police reports stated, that in 1847 there had been taken into custody 62,181 individuals of both sexes and all ages. Of these, 20,702 were females, and 47,479 males. Of the whole, 15,693 were under twenty years of age, 3,682 between fifteen and ten, and 362 under ten. Of the whole, 22,075 could neither read nor write, and 35,227 could read only, or read and write imperfectly. The average attendance last year in the "ragged schools" was 4000. Of these 400 had been in prison, 600 lived by begging, 178 were the children of convicts, and 800 had lost one or both their parents, and of course were living by their own contrivances. Out of the 62,000, there were not less than 28,113 who had no trade, or occupation, or honest livelihood whatever!