[ 55' 2 ] 
very fuddenly, and return again with the fame mo- 
tion, which I judged to be about a foot, or eighteen 
inches perpendicular, which made the barks and 
boats then afloat run forwards and backwards on 
their ropes with great rapidity ; and this continued 
for three or four minutes, it being then calm - y but 
after the fecond or third rufh of water, it always 
grew lefs : And this is the neared calculation I can 
make. 
Mark M'Callum. 
Read Mar. 18,^1^ HE following phenomena are well 
1756 X vouched to have happened at Ham— 
bourg, the firft of November 1755. In one of the 
Churches many perfons, that were prefent, obferved 
an agitation of the branched candledicks hanging 
from the roof, about one o’clock after noon. In 
another church, the cover of the baptidery hanging 
from the roof was alfo remarked to be agitated : 
and the like motions are faid to have happened in 
other churches. It islikewife fure, that the water 
in the canal thro’ the town, and in the river Aider, 
was agitated the fame day. It is defcribed firft to* 
have formed feveral gentle whirlpools, from thence 
to have rifen more and more impetuoufly, throwing 
about mud brought up from the bottom, and at lad 
to have fubfded with a copious white froth. The 
Elbe is faid to have rifen in fome places dill more 
violently. 
LXXXII. 
