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the 6th of September at night ; unlefs the diredlion 
of the winds, which feemed moft commonly nearly 
in the fame line with the fl^.akes of the earthquakes, 
might be thought to have any. 
zdly, What fome of the ancients have told us of 
the fpring and autumn being the two ufual feafons 
for earthquakes, appears not only from thele, but 
what has been obferved by others, to be no general 
fecure rule, iince they happen equally in all feafonS. 
3dly, The velocity of motion, and the diftance of 
the line of communication, appear extremely fur- 
furprifing. From Adrianople to Smyrna, in a right 
line, is not lefs than 2 fo miles, and to Conftantino- 
ple ifo miles. Poffibly the reafon it was felt with 
lefs force at the former of thefe places arifes from 
the difference of diftance, and that its force decreafed 
in proportion to it ; whence we might form a con- 
jecture on fome grounds, that the origin of the ex- 
plofion was at or about Adrianople. 
Sivas, in a right line, I compute at about 750 
miles. I cannot yet be informed of the hour* or pre- 
cife time when they felt it there : I heard that it was 
on the fame day. Thefe people are not fufficiently 
obferving to remember to an hour. 
N. B. The Thermometer is graduated from r. 
to 100. defcending, 50 temperate, 60. to 65. 
cold, 80. freezing point, 95. to 100. extreme 
cold, greatefl heat in this climate 3f. to 30. not 
durable. 
R 2 
XXV. 
