VOL.Liri.] PHILOSOPHICAL TRANSACTIONS- 13 



marking the times while Mr. Hirst observed. The telescope he used was a re- 

 flector made by DoUond, in perfect order, being sent out of England by the last 

 ships, and about 22 inches in length. 



Observation of the lunar eclipse Nov. 2, 1762, made at Calcutta in the king- 

 dom of Bengal, latitude 22° 30' n. 



By the watch. Apparent time. 



The beginning of the eclipse at. . l'' 15"" 10* l*" 7'" 40' 



End of the eclipse 4 3 2 3 55 32 



Total duration 2 47 52 2 40 22 



Near 8 digits eclipsed by occular demonstration. 



XLI. On the foregoing Earthquake. By Mr. Edicard Gulston, at Chittigong. 



p. 263. 

 The violent earthquake which was felt here on April 2, 1762, at 5 in the after- 

 noon, lasted the space of 4 minutes. The factory, a brick building, is totally 

 spoiled, so as not to be safely habitable ; for thereabouts, and in many other 

 places, the earth opened and the water gushed out prodigiously. At the time of 

 the first shake, great explosions were heard like the noise of cannons, of which 

 they counted 15. All the tanks overflowed their banks, fish were cast up, and 

 the river rushed upon the shore like the surf of the sea. 



XLI I. Of the Earthquakes that have been felt in the Province of Islamabad, 

 with the Damages attending them, from the id to the IQth of April, 1762. 

 p. 265. 



The weather being very close and warm for some days preceding, on the 2d of 

 April, about 5 in the afternoon, they were alarmed by an earthquake, which be- 

 ginning with a gentle emotion, increased to so violent a degree, for about 2 

 minutes, that the trees, hills, and houses shook so severely, that it was with diffi- 

 culty many could keep their feet. On the plains, by the rivers, and near the sea, 

 it was chiefly felt with great severity. There is not a brick wall or house but is 

 either greatly damaged or fallen. The ground opened in several places in the 

 town, throwing up water of a very sulphureous smell ; and several ditches and 

 tanks were filled up, which are now level dry land. The emotions were so com- 

 plicated, that we could not well determine their direction, being sometimes from 

 west to cast, and again from east to west : and the tanks in some places over- 

 flowed north and south. In Purgunnah Deang, Bursea Gong, the ground in 

 several places opened 10 and 12 cubits wide; and in some parts so deep, that they 

 could not fathom its bottom ; the water immediately overflowing the whole town, 

 which is sunk about 7 cubits. Deep Gong, a village near the other, is also sunk, 

 and now lies 7 cubits under water. From Patter Gottah to Howlah, about 8 cess 



