[ 5 1 2 ]- 
ing was large enough to thruft one’s hand in, and no 
bottom can be found. In another part of the moun- 
tain the earthquake opened a fpring fufficient to turn 
two mills. It continues ro run near the Rhone. It 
is remarkable, that before the earthquake there was 
no fource of water in that place. The earth has 
been opened in another place. The opening is round, 
and no bottom can be difcovered. The earth con- 
tinues to fhake almoft every day, but thefe fhocks are 
much gentler than the hrft. People here are under 
extreme apprehenfions. Mod of the inhabitants are 
retired into the mountains, where they lodge in wooden 
houfes, which are fafer than thofe in the city. 
LX IX. FxiraSl of a Letter from Monf 
Allemond, Profejfor of Natural Philo- 
fophy at Leyden, and F. R. S. to Mr . 
Trembley, F. Ii. S '. , Franfated from the 
French. 
Leyden, Jan. 27, 1756. 
Read Feb. ! 9 >/XN the night between the 26th and 
27th of the lad month of December, 
1755, between eleven o’clock and midnight, there 
was a confiderable earthquake on the frontiers of this 
country. It was felt at Liege, Maeftricht, Nime- 
guen, Arnheim, and, according to fome accounts, at 
Breda. There were three different fhocks, the laft 
of which happened at about four in the morning, 
4 but 
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