52 A. a Twining on the Earthquake of October, 1870. 



the cessation of the earthquake at that office, and received re- 

 plies from Montreal. His condensed statements are : " All per- 

 ceptible motion was over here by the time I had finished tele- 

 graphing to Montreal — do you feel earthquake. It would take 

 about eight seconds to telegraph the words used. The operator's 

 immediate reply was — no. About fifteen seconds after, he said 

 — here it is. The gentleman at Montreal afterward explained 

 that, although he said no, he did experience a slight movement 

 at the time, but was not aware that it was caused by an earth- 

 quake. He telegraphed — here it is — on the instant that the 

 shock became sensibly evident. He cannot say how long the 

 vibration lasted after that period, accurately, but is of opinion it 

 continued for nine or ten seconds. The following further par- 

 ticulars be may of interest. The shock passed over this district | 

 from a northerly direction, — a rumbling sound accompanied the ; 

 shock, resembling that produced by ponderous machinery- 

 noise and motion increased steadily for some seconds, and grad- 

 ually passed away. Buildings were violently shaken. Our 

 office being in the upper part of a high brick building, the trem- 

 bling was powerfully felt^the clock in the office was stopped 

 by it at 11 : 25, but am not certain if the time by it previous to 

 the shock was correct. Some observers say the shock was first 

 felt here a few seconds before 11 -.24, and lasted forty seconds 

 —others state fifty or sixty seconds. I am of opinion it lasted 

 sixty seconds. No two opinions agree as to the commencement 

 and duration." 



"At Bay St. Paul and Les Eboulements— places about ninety 

 or one hundred miles northeast of Quebec—the ground opened 

 in several places, and water was thrown up. Slight elevations 

 of land in some places were produced. The countrv in the 

 vicmity of St. Paul's Bay is of volcanic formation, and slight 

 shocks are of frequent occurrence. A gentleman from that vi- 

 cinity informs me that they had twenty or thirty slight shocks 

 within the past two weeks. The shock on the 20th, here, did 

 not appear to have an undulating, upheaving motion, but to 

 partake of a tremulous nature." 



" The operator at Richmond, a place ninety miles southwest 

 of here, says the shock was just passing away there at the 

 period when I made the inquiry of Montreal." 



Mr. McCord does not refer to specific authority for the con- 

 vulsive effects at Bale St Paul and Les Eboulements, some 55 

 to 62 miles in a direct line from Quebec; but they are in gene- 

 ral conformity to what has long been known to British geologists 

 respecting the volcanic character of the region specified. They, 

 m fact, recall and confirm the representations made at page 236, 

 vol. XXX of this Journal, 1836, in a paper by Capt. B. H. Bon- 

 nycastle, R En. In that region, very probably, lay the initial 



