130 EARTHQUAKES IN THE EIGHTEENTH CENTURY. [Ch. XXIX. 



will gradually deepen a new cliannel in it, and the lake will 

 exist no longer.^ 



erranuova 



enormous 



enormous iiicv^>^k.^ ^^ ^ o 



and cast down into the course of the river, so as to give rise 

 to lakes. Oaks, olive-trees, vineyards, and corn, were often 



bottom 



m 



former 



miles 



seen gruw-ij^ig u-u ^^^^ 



their former companions, which still continued to flourish 



the plain above, at least 500 feet higher, and at the distance 

 of about I of a mile. In one part of this ravine was a mass, 

 200 feet high and about 400 feet at its base, which had been 



earthquake. It is well attested, 



that this mass travelled down the ra,vine nearly 4 

 having been put in motion by the earthquake of February 6. 

 Hamilton, after examining the spot, declared that this phe- 

 nomenon might be accounted for by the declivity of the 

 valley, the great abundance of rain which fell, and the great 

 weight of the alluvial matter which pressed behind it. 

 Dolomieu also alludes to the fresh impulse derived from 

 other masses falling, and pressing upon the rear of those 



J 



first set in motion. 



Naple 



landslips above alluded to, which caused a great lake near 

 Terranuova, was couched in these words :— ' Two mountains 

 on the opposite sides of a valley walked from their original 

 position until they met in the middle of the plain, and there 

 joining together, they intercepted the course of a river,' &c. 



esemble 



omena 



have occurred at Fez, during the great Lisbon earthquake. 



Jamaica 



ISTot far from 



the ground by the great shock of February, a small valley, 



beautiful olive-grove, called Fra Eamondo, 



containing a 



underwent a most extraordinary revolution. Innumerable 

 fissures first traversed the river-plain in all directions, and 

 absorbed the water until the argillaceous substratum became 



* See Robert Mullet, Neapolitan Eartliquake of 1857, vol. ii. p. 372. 



