“And pray, sir, what did your machine cost?” “Two pounds!” “Indeed,” I replied; “and what was the cost of the boy?” “Ten shillings; and do you think, sir, I could sweep with my machine, which cost me so much, at the same rate as I could charge for the boy, that cost me only ten shillings?” There was no replying to logic so conclusive as this; and we think it right to give it publicity, in the hope that it may meet the eyes of some of our readers at the other side of the Atlantic, who may be induced to rid us of some of our superabundant population, by importing our black boys, which they can get, even including the expense of carriage, at so much cheaper a rate here than they can procure them at home! G. ELEVATION OF THE LABOURING CLASSES. We have to express our thanks to the Westminster Review for the publication of two MS. letters to Leonard Horner, Esq. one of the factory inspectors, from the proprietor of a cotton mill in the north of England, whose modesty it is to be regretted prohibits the publication of his name, and has hitherto prevented the publication of these letters. The introductory article in the Review contains some admirable strictures upon the radical defect of governments failing to perceive that the elevation of the people, in a moral and physical point of view, is not only one, but the fundamental duty of legislators. The writer points out that in all countries and ages to the present time, those who have been placed at the head of public affairs have had little or no leisure, if they possessed the inclination, to study schemes of human improvement; their time has been occupied in maintaining order, making war, and raising a revenue for these and similar objects, whereas the necessity for police and armies would be lessened by striking at the root of the evil, and elevating the “hewers of wood and drawers of water” in the scale of intelligence and happiness.