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Scientific American, Vol. 1, No. 12 (1859) (1859)

leaf 7

An illustration from Scientific American, Vol. 1, No. 12 (1859), 1859, leaf 7
ched, so as to give motion from the axle by an elastic plate. to the mill. To the back end of the draft-pole, The wheel, G, is mounted on by means of a swivel-joint, a revolving harrow, H, is attached, bearings in lugs, d, which are . the teeth of which are set secured or cast with the frame, A,… … THE OLD EARTH. lower part of the box, J, is round- ed in a semi-cylindricalform, and of England are a thousand feet in this a toothed wheel, extending thick, and below this is a bed of rocks of a different kind, another thousand feet in thickness, crowded, as well as the chalk, with the remains of…

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