1843.] Memoir on Indian Earthquakes. 285 



the shock : " October 29th. At half past 7 p. m. a second shock occur- 

 red. The motion was from North to South, as appeared by the liquids 

 in decanters on the dinner table. The shock was gentle, and the 

 motion lasted about half a minute, when it was gently repeated." 



14. Earthquake of the 6th of November, 1842. 

 This was another of the local Delhi shocks, and was experienced at lh. 

 30m. p. m., on the 6th November. Mr Bingham in communicating its 

 occurrence to me remarks, that it makes the eighth shock experienced in 

 Delhi during the year. Five of these are recorded in this Register, 

 two occurred before it was commenced, and the eighth was probably 

 that of the 5th of March, although no notice of its having been felt 

 there has reached me. Out of these eight, six were local and primary 

 shocks, emanating from a focal tract in the immediate vicinity of the 

 place, while the remaining two were secondary, and transmitted from 

 distant and distinct centres. 



15. Earthquake of the 11th of November, 1842. 



The Earthquake of the 1 1 th of November, one of the severest that 

 had been felt for years, was confined in its influence to the Lower Pro- 

 vinces. Its effects at Calcutta will first be detailed, and its course then 

 traced Eastward and Westward from that place. 



I place the following Extract from a letter from H. Piddington, 

 Esq. first among the notices of the shock at Calcutta, because it furnish- 

 es the most accurate and trust- worthy information relative to the period 

 and direction of the shock as experienced there. The time, as given 

 by Mr. Gray, namely 9h. 38m. p. m. will be assumed for comparison 

 with the times at other places, and these will all be reduced to Calcutta 

 time. 



Extract from a letter from H. Piddington, Esq. to my address, dated 

 2\th November, 1842. 



" I learn from the watchmakers (Mr. E. Gray, the first in his pro- 

 fession here,) that the true time of the shock was 9h. 38m. Its direc- 



