OCT. — DEC. 1856.] 



Scientific Intelligence. 



113 



at Trevandrum appears to have observed either shock excepting 

 those on the watch at the observatory. 



Sie, — The shocks of earthquake are reaching us so frequently 

 that they will cease to be interesting as news, and the proper place 

 to notice them in detail will be in the pages of some scientific peri- 

 odical. 



Another shock was felt here at 15 m. 0 s. afternoon of to-day 

 (1st September). The effects of the shock on the magnetical in- 

 struments were even more remarkable than on the last occasion ; 

 and the ball of a pendulum 17 feet long moved through a space of 

 about 4 inches in the direction N. W. by N. and S. E. by S. ; I 

 believe from the former to the latter. 



In my attempts to obtain information on the last two shocks I 

 have heard (from Dr. Colebrook of Madura) of a remarkable shock 

 experienced on the 17th of March last, near midnight, about 30 to 40 

 miles east of Madura, the noise seeming to travel from west to 

 east. An examination of the observations of the magnetical in- 

 struments in observatories on Agustier Mullay and here, shows that 

 the shock was felt markedly by both places. 



Any communication on earthquake shocks felt in Southern India 

 addressed to me would much oblige. 



Sir, 



Your's very obediently, 



John Allan Brown. 



Trevandrum, 1st September, 1856. 



[The following letter, describing the shock experienced on the 17th of March 

 last in Madura, is taken from the " Thinavarthamani" of the 27th March 1856, 

 a Tamul Newspaper edited by the Rev. P. Percival.] 



( Literally translated. J 



" I am sure you will not object to publish the following account 

 of a wonderful Phenomenon, in your valuable journal, for the infor- 

 mation of the people of other countries. 



At 1 o'clock on the night of the 17th March 1856, a sound was 

 suddenly heard in Parama goody a village of this Zillah of Madura, 



