different European Chains of Mountains. 307 



which communicates with the sea, had evidently risen greatly 

 above the level of the water, and in this locality the fact could 

 not escape the most careless observers. 



At Valparaiso, the country appeared to be raised about a 

 yard. Near Quintero, it was found to have risen a yard and 

 a third. It has been asserted, that, at the distance of & mile in- 

 land, the raising was more than two yards ; but I am not ac- 

 quainted with the circumstances of the measurements which led 

 to this last result. 



Here, as is seen, there were no volcanic eruption, no lavas 

 spread out, no stones and ashes projected into the air ; and un- 

 less it be maintained that the level of the ocean has fallen, it 

 must be admitted that the earthquake of the 19th November 

 1822 raised the whole of Chili. Now, this last consequence 

 is unavoidable ; for a change in the level of the water would 

 shew itself in the same degree over the whole extent of the coast 

 of America, while nothing of this kind has been observed in the 

 harbours of Peru, such as Payta and Callao. 

 • If this discussion had not already been protracted, I might 

 have brought the preceding observations to a close, from which 

 there results that, in a Jew hours, in consequence of some shocks 

 of an earthquake, an immense extent of country may rise beyond 

 its original level, into connexion with those which shew that there 

 is in Europe a large country, Sweden and Norway, whose level 

 also rises, but in a gradual manner, and through a cause inces- 

 santly acting, whose nature is not well known. The numerous 

 observations on which this curious result is estabhshed, would, 

 however, occupy too much space, and I shall be obliged to omit 

 them for the present. 



Observations on tlie Fontaine Ronde, a Periodical Spring on 

 the Jura. By M. Dutiiochet. 



The Fontaine Ronde is situated about a league and a-half 

 from Pontarlier, in the road from thence to Lusanne. This very 

 powerful spring has no proper basin, for the water rushes im- 

 mediately from a declivitous bottom, covered with coarse gravel, 



u 2 



