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21. Lockmaking.—The manufacture of locks appears to be rapidly extending. In an establishment at Pittsburgh, employing 350 men in making locks, coffee mills, copying presses, &c., good work was being turned out.

Another at Newhaven, Connecticut, employs about 200 men in making locks and lock-handles. The latter are made of coloured clays, so mixed as to present a grained appearance. They are first moulded by hand, then turned in a self-acting lathe with great rapidity, and are afterwards baked in a furnace.

Padlocks are made here of a superior quality to those of the same class ordinarily imported from England, and are not more expensive.

22. Clockmaking.—The celebrity attained by New England in the manufacture of clocks