new; the sewing-machine, the power-loom, the McCormick reaper, the mowing-machines, gaslight, lucifer matches, and the immense productions of the laboratory, are new in this century, and one franc's worth of coal does the work of a laborer for twenty days. Why need I speak of steam, the enemy of space and time, with its enormous strength and delicate applicability, which is made in hospitals to bring a bowl of gruel to a sick man's bed, and can twist beams of iron like candy-braids, and vies with the forces which upheaved and doubled over the geologic strata? Steam is an apt scholar and a strong-shouldered fellow, but it has not yet done all its work. It already walks about the field like a man, and will do anything required of it. It irrigates crops, and drags away a mountain. It must sew our shirts, it must drive our gigs; taught by Mr. Babbage, it must calculate interest and logarithms. Lord Chancellor Thurlow thought it might be made to draw bills and answers in chancery. If that were satire, it is yet coming to render many higher services of a mechanico-intellectual kind, and will leave the satire short of the fact. How excellent are the mechanical aids we have applied to the human body, as in dentistry, in |