From water being thus confined in high columns between the strata of mountainous countries it has often happened that when wells or perforations have been made into the earth, that springs have arisen much above the surface of the new well. When the new bridge was building at Dublin Mr. G. Semple found a spring in the bed of the river where he meant to lay the foundation of a pierre, which, by fixing iron pipes into it, he raised many feet. Treatise on Building in Water, by G. Semple. From having observed a valley north-west of St. Alkmond's well near Derby, at the head of which that spring of water once probably existed, and by its current formed the valley, (but which in after times found its way out in its present situation,) I suspect that St. Alkmond's well might by building round it be raised high enough to supply many streets in Derby with spring-water which are now only supplied with river-water. See an account of an artificial spring of water, Phil. Trans. Vol. LXXV. p. 1. In making a well at Sheerness the water rose 300 feet above its source in the well. Phil. Trans. Vol. LXXIV. And at Hartford in Connecticut there is a well which was dug seventy feet deep before water was found, then in boring an augur-hole through a rock the water rose so fast as to make it difficult to keep it dry by pumps till they could blow the hole larger by gunpowder, which was no sooner accomplished than it filled and run over, and has been a brook for near a century. Travels through America. Lond. 1789. Lane.] IV. "Sailing in air, when dark MONSOON inshrouds 130 His tropic mountains in a night of clouds; Or drawn by whirlwinds from the Line returns, And showers o'er Afric all his thousand urns; High o'er his head the beams of SIRIUS glow, And, Dog of Nile, ANUBIS barks below. 135 NYMPHS! YOU from cliff to cliff attendant guide In headlong cataracts the impetuous tide; Or lead o'er wastes of Abyssinian sands The bright expanse to EGYPT'S shower-less lands. --Her long canals the sacred waters fill, 140 And edge with silver every peopled hill; Gigantic SPHINX in circling waves admire; And MEMNON bending o'er his broken lyre; O'er furrow'd glebes and green savannas sweep, And towns and temples laugh amid the deep.