more than half a yard deep by the torrent, and the 
guds of wind are mod dreadful. We have already 
got fome bad accounts from fea. 
Take a vedel, making the portion of a fphere of 
three or four feet diameter. Place it on a ground- 
door. Dud it all over on the indde with a bar- 
ber’s puff, and then pour fome water gently into it. 
Upon the fmalled tremor, the water will wadi the 
dower from the parts of the veffel upon which it 
rifes; and will of confequence mark the diretdion 
and height of the fhock. 
and direSUon o. 
\ 
VI. 
