[ 575 ] 
l8. All the greater earthquakes, that have been 
felt at * Jamaica, feem, by the accounts given of 
them, to have come from the fea, and, pafling by 
Port-Royal, to have gone northwards. The velocity 
of thefe alfo was far fhort of the velocity of the LiR 
bon earthquakes. 
ip. The earthquake of -f London, on the 8th of 
March 1770, was fuppofed to move from eafl: to 
weft. I have been credibly informed, that the fame 
thing happened in a flight fhock, which was felt 
there in the lad century, as the perfon, who told me 
this, had an opportunity of obferving; for being, by 
accident, in a fcalemaker’s Atop at the time when it 
happened, he found that all the fcales vibrated from 
eafl: to wed. 
20. All the fhocks that have been lately felt at 
Brigue in Valais, have likewife come from the fame 
point of the compafs, viz. the fouth ;£. 
2 r . Fifthly , The great Lisbon earthquake lias been 
fucceeded by feveral local ones flnce, the extent 
of which has been much lefs. 
22. Such were the earthquakes in Switzerland j 
thofe on the borders of France and Germany 3 thofe 
in Barbary, &c. || 
* See the accounts of them in Philof. Tranf. N° 209. cr vol. ii. 
Lowthorp’s Abr. p. 410, &c. 
f See Hift. and Philof. of Earthq. p. 250. or Philof. Tranf. 
vol. x. Martyn’s Abr. Meteorology, pafiim. 
I See Philof. Tranf. vol. xlix. p. 620. The fame has been 
obferved at Smyrna alfo, fee Philof. Tranf. N° 495, or Martyn’s 
Abr. vol. x. p. 526. 
}| See the accounts of thefe collected together in Philof. Tranf. 
vol. xlix. or in the Hift. and Philof. of Earthq, 
Sect. 
