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 wooden scrapers that carry along the chips as they fall, to a recess at the side of the room. Here they are carried off by the scrapers of another endless chain, running up an inclined plane. The pullies on which this side chain works are larger in dimensions than those of the transverse chain which works inside.

The transversing chain thus deposits its chips in the trough of the inclined plane, and they are carried up to a hole in the ceiling of the fuel room, adjoining the boiler house; through this hole they fall into the fuel room, and fill it up, of necessary, to the top.

28. Daniel's Planing Machine.—Where an accurately smooth surface is required, Daniel's planing machine is employed.

It consists of an upright frame, in which a vertical shaft revolves, having horizontal arms, at the ends of which are fixed the cutters.

The work is carried along on a travelling bed under the cutters, which are driven at a very high speed.

29. Box Making.—In a box manufactory at Worcester, Connecticut, a machine, made on Woodworth's principle, planed boards 10 inches wide simultaneously on both sides.

Boxes are made in great numbers, from