278 Memoir on Indian Earthquakes. [No. 136. 



Juanpore, 29th May, 1842. 

 "Dear Sir, — I have to-day received the Journal of the Asiatic 

 Society, No. 123 ; and as you invite communications regarding Earth- 

 quakes, I hasten to inform you, that a slight shock was felt here on the 

 21st inst. between the hours of 8 and 9 a.m. I did not, I regret to say, 

 note the time, because I found that no one else in the house noticed 

 the shock. In the evening I met Mr. Tulloh, who asked me if I had 

 ' felt the Earthquake V shewing that it was not mere imagination on 

 my part. The motion seemed to be North and South. It was in 

 reality nearly vice versa," but without reference to some standard in- 

 dicator of direction, it is impossible from mere sensations to tell the 

 direction of a shock correctly. 



" The weather," Mr. Tregear continues "here is exceedingly oppres- 

 sive, and if such a state of the atmosphere can be considered as pro- 

 phetic, I think we have more natural or unnatural convulsions at hand. 

 It is more than possible that chemical or mechanical changes in the 

 interior of the earth have great electrical influence on the surface ; and 

 these changes may be accompanied by perceptible vibrations.* * * * * 



Faithfully yours, 



Vincent Tregear." 



I shall have occasion in another part of this memoir to allude to 

 some interesting atmospherical phenomena which have been found to 

 accompany Earthquake shocks, but as this Register is intended to be 

 simply narrative, I do not at present make any comment on Mr. Tre- 

 gear's remarks. 



The next place from which we have any record of this Earthquake 

 having been felt is the city of Patna, in lat. 25° 37' N. long. 85° 15' E. 

 Our information is limited to the following extract from the Calcutta 

 Englishman of the 28th of May : — 



" A letter from Patna," the Editor states, " mentions that a smart 

 shock of an Earthquake was felt there at 8h. 36m. a. m. on the 21st 

 instant." 



The shock travelled next to Darjeeling, in lat. 27° 00' N. and long. 

 88° 25' E., and situated at a height of about 7,000 feet above the level 

 of the sea. The following letter from Arch. Campbell, Esq. Superin- 

 tendent of Darjeeling, gives details of the shock as experienced at 

 that place : — 



