\ 
Lifbon * - - - 
Oporto * 
Ayamonte - 
Cadiz - 
Madrid - 
Gibraltar - 
Madeira - - - 
Mountfbay - - 
Plymouth 
Portfmouth - - 
Kingfale 
Swanfea - 
The Hague - - 
Lochnefs - 
Antigua - - - 
Barbadoes - - 
[ 628 
Half deg. 
Min. 
- 
- 
2 
3 
- 
- 
3 
5 
mm mm 
- 
6 
- 
- 
9 
12 
- 
- 
9 
1 1 
- 
- 
1 1 
18 
- 
- 
1 9 
2 5 
- 
- 
20 
- 
- 
21 
- 
•• 
2 3 
29 
- 
- 
2 3 
- 
- 
24 
%m — 
- 
30 
3 2 
- 
- 
33 
66 
- 
- 
98 
- 
- 
IOI 
Min. 
I 2 
53 
82 
152 
1 67 
360 
290 
53 ° 
565 
485 
98. In computing the times in the preceding table, 
allowance was made for the difference of longitude, 
as it is laid down in the common maps, which are 
* It appears, by all the accounts, that the interval between the 
earthquake and wave, either at Oporto or Lifbon, was not long : 
I have met with no account yet, however, which tells us how long 
it was at the former, and only one which mentions it at the latter, 
where it is faid to have been nine minutes. [See Memoires fur Us 
iremblemens de Terre, p. 245. compared with Hift. of Earthquakes, 
P- 3 I 5 -] Thefe intervals, if we knew them exadfly, might have 
iervcd, perhaps, to afcertain the diftance of thofe two places from 
the original fource a little more accurately ; but, as the diflance of 
neither from thence could be very great, a fmall difference in them 
would hardly fenfibly affe£t any of the others ; from which, there- 
fore, we may draw the fame general conclufions, as if they were 
«“xa£t. 
not 
