Antiquities, Historical and Monumental of the County of Cornwall; With a Vocabulary of the Cornu- British Language

Antiquities, Historical and Monumental of the County of Cornwall; With a Vocabulary of the Cornu- British Language

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1758 edition. Excerpt: ... meet with there; but the quicker they descend, the sooner they get at rest, and fix by immerging themselves in the stiff clay and rubble, and vice versh. Thirdly, The smaller shodes were moved to and fro easily and frequently, and consequently much dispersed; whereas the greater, and weightier the sho es were, the more they resisted the agitation of the waters, and were less removed. Fourthly, The smaller shodes are usually found in and near the surface, being washed downwards, till, by the resistance of the ground on which they are spread, they are forced out like the rills of brooks into open day, whilst the larger, by their superiour weight, rest deeper interred, and nearer the lode. Fifthly, The more distant shodes are found from the lode, the more they were dispersed by the water, and consequently became fewer in number in any equal space, like diverging rays 5 and the nearer to the lode, the thicker and more frequent they remain for the same reason. See Pl. XVII. Fig. vm. Sixthly, Sixthly, That the angles of these stones are ssblunted, proceeds evidently from the agitation of water, and they are smoothed in proportion to the distance they have been rolled; and had the force continued a sufficient while, these stones would have been as round as the pebbles on the sea-shore; 'but the farther we fsind 'them from the lode, the more trituration they 'have undergone, and 'vice wersd. It may be here objected, that if the delugc sinoothed off 'the angles of these shodes, why had it not the same effect upon the loose parts of the killas, granite, marble, and other stones with which these shodes are intermixed? The reason seems 'to be this: The long, flattish, light, and sharp-angled parts of the broil continued their former situation on the...show more

Product details

  • Paperback | 134 pages
  • 189 x 246 x 7mm | 254g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236961765
  • 9781236961761