22 WILLIASI T. BRIGHAM 



turned chimneys. According to Professor Dawson, it was, in several places, preceded by 

 a dull noise, then a series of light vibrations, which were terminated by a sudden shock. 

 At Prescott, three shocks were reported.^ At O*" 3' a strong shock was felt at Isle Jesus, 

 lasting twenty seconds, and apparently coming from the north-north-west.^ This earth- 

 quake was al>^o felt at Syracuse, New York, where it lasted four seconds, shaking furniture. 

 The date of this shock has been much confused ; Perrey places the New York shock on the 

 tenth, and another report gives the eleventh for the disturbance at Isle Jesus. They were 

 all doubtless to be referred to one. 



August 31, at S*" 22' A.M., two shocks Avere felt at Washington, at an interval of about 

 five seconds, and each lasted six or seven seconds. The direction seemed to be south to 

 north, and they were felt at Cincinnati, Ohio. 



February 2, 1862, about 8'' P.M., a strong shock at Colchester, Connecticut ; 



service in the churches was interrupted ; at Lyme it lasted three or four seconds. 

 This is in the region of which East Haddam is the centre. 



February 4, about T"" 3U' A.M., at Saybrook, and other towns in Middlesex County, 

 Massachusetts, a shock less than that two days before lasted some seconds. 



April 20, 1864, between l'^ and 2*" P.M, a shock more violent than that of 1860 



w^as felt at Quebec but not noticed at Montreal. Two shocks were felt at Danville 

 and Father Point. The time at Quebec was probably 1" 10'- l"" 15' P.M., and two dis- 

 tinct shocks of five or six seconds duration, were noticed. In the Harvey Hill Mines, at a 

 depth of 180 feet, it was perceptible. At Father Point, another shock at 11^ P.M. is re- 

 ported.^ 



October 21, 4*" 10' A.M., four distinct shocks were felt at Montreal. They seemed to 

 come from the east, and each lasted about ten seconds. 



December 18, 1867, 3'' A.M., a shock is reported in New York and Vermont, as 



far south as Whitehall, on the boundary of these States ; and in British America, 

 from Belleville, Canada, to Sackville, New Brunswick. It lasted about twenty-five sec- 

 onds. At Burlington, Vermont, most of the inhabitants were waked up. At Syracuse, at 

 S** 10', and the duration estimated at 1' 30"; direction from south to north, stronger at the 

 commencement than the end. At Ogdensburg, the noise seemed to last two minutes and 

 the vibrations one minute ; direction west to east ; intensity varying gradually, highest 

 at either extreme. At Hanmiond, the first shock is said to have occurred at 2^ 50' A.M., 

 and was followed by others lighter. At 4" 27' a final shock. At Montreal, at 3" A.M. 

 The shock extended from Port Hope on the west, to Trois Rivieres on the east.* 



[As nearly two years liave elapsed since this p.aper was prepared, it has been thought best to continue the 

 enumeration of earthquakes in New England up to the time of publication.] 



October 22, about 6'' A.M., an earthquake was felt over New England, and the 

 eastern Province. In Nova Scotia it was noticed at Halifax, Kentville and Annap- 

 olis. At St. John, New Brunswick, the shock was severe, lasting about 20", and pi'eceded 

 by a rumbling noise. People were frightened from their houses. At Frederickton, chim- 

 neys were thrown down and walls cracked. At New Haven, very few noticed it, and it 

 was even less at Boston.® 



' Canadian Naturalist and Geologist, vol. VI, p. 329. * Silliman's .Tournal (5), vol. xi.v, p. 135. 



"^ Ibid vol. VII, p. 43. 'Silliman's Journal (2), vol. XLVIII, p. 418. 



* Ibid, New Series, vol. I, p. 15G. 



