Meteor and Earthquakes. — Storm at Rotterdam. 315 



In its massive state it differs from felspar in not being straight 

 foliated, but always radiated. Labradore spar is completely 

 decomposed by concentrated muriatic acid, while felspar and 

 albite are not affected by it. Anorthite yields to muriatic acid 

 as Labradore spar does. The name is derived from ccvogio;, 

 not rectangled ; as the want of a rifjht-angled cleavage, in both 

 directions of its laminge, peculiarly distinguishes it from fel- 

 spar. We must refer to the paper itself for the details of the 

 crystallization-system of the above minerals. — Jotamal of 

 Science, vol. xvi. p. 106, from Gilberts Annalen, No, Ixxiii. 

 p. 173. 



METEOR AND EARTHQUAKES. 



At Ragusa (in Dalmatia) the heat in August last was at 

 31° of Reaumur, which produced contagious diseases, that 

 carried off a great number of people. The drought was very 

 distressing. On the 20th of that month the air became sud- 

 denly dark, a fiery meteor appeared over the city, fell into the 

 sea, and was followed by an earthquake, which overthrew many 

 houses. Several persons were killed. The sea retired nearly 

 a mile from the coast. The first shock was felt in Turkish 

 Bosnia : it caused an immense piece of rock to fall, which, 

 rolling into the sea, struck a vessel laden with flour and buried 

 it with its crew in the waves. It is reported that a volcano 

 has broken out in that province. At Ragusa a fort built by 

 the French, and a great number of houses, are thrown down. 



Accounts from St. Petersburgh state, that slight shocks of 

 an earthquake were felt at Pawlouisk, in the government of 

 Wororesch, on the 22d, 23d, and 27th of August. 



STORM AT ROTTERDAM. 



Dublin, October 20, 1823. 

 In your Magazine for last month you gave an account of 

 the effects of a storm in the districts of country round Antwerp 

 in August last, where your correspondent says some hundred 

 trees were overturned and great ravages committed in the corn- 

 fields and gardens by water-spouts ; and one place is men- 

 tioned where twenty large trees were broken by these spouts 

 and thrown across the public road. I happened to be in that 

 part of the country at the time, and I did not hear of any 

 damage done by water-spouts, nor did I see any marks of 

 their ravages on the fields ; but there were some severe thun- 

 der storms at that time. And near Mechlin, on the road side, 

 I counted thirteen large trees broken across and lying by the 

 way. They had been broken bij lightning a few days before I 

 pfissed, and were part of a row of poplars which had lined 

 the road. And, what appeared to nie very singular, it was 

 R r 2 only 



