and especially in Scotland, 291 



mentioned, that the " morning of the previous day was rainy, 

 foggy, and warm. The same humid weather prevailed up to the 

 close of January, and the season was a fortnight nearly in ad- 

 vance up to end of March." " The temperature of the ground,'' 

 it is added, " was unprecedentedly high for mid- winter, and 

 the water in the wells 2° above the average." 



Mr Gilfillan has the following entry in his journal, in de- 

 scribing the Comrie earthquake of 2d January 1795, which 

 happened at 1 hour 50 minutes a. m. " The preceding even- 

 ing was clear and frosty. The air was impregnated with hoar- 

 frost, which fell upon the earth in great quantities. The win- 

 dows of my chamber were incrusted with it when I went to 

 bed. Immediately after the shock, I looked at the glass, and 

 saw the hoar-frost was melted. The wind began to blow a 

 little from the N.NW., about 1^ hour after the concussion, 

 and I have always observed that the wind is N. or NW. during 

 our earthquakes."* 



Notices to the same effect will be found under dates Decem- 

 ber 170S, July 1795, 18th September 1801, and December 

 1826. 



10. Fogs have attracted attention, as 2i frequent attendant on 

 earthquakes. 



In the accounts given of the Lisbon earthquake of 1st No- 

 vember 1755, it is mentioned, that, on the preceding day, at 

 Colares, the weather was " uncommonly warm for the season, 

 the wind north, from which quarter, about 4 p. m., there 

 arose a/<9^ which came from the sea, and covered the valleys, 

 a thing rare at this season of the year. Soon after, the wind 

 changing to the east, the fog returned to the sea, collecting 

 itself and becoming exceeding thick. The 1st November, the 

 day broke with a serene sky, the wind continuing at east ; 

 but about 9 a. m. the sun began to grow dim, and about half 

 an hour after was heard a rumbling noise like that of chariots, 

 which increased to such a degree as to equal that of the loud- 

 est cannon, and immediately a shock of an earthquke was 

 felt."t At Lisbon, in like manner, it is noticed, that, on " the 

 31st October, the atmosphere and light of the sun had the ap- 



* Edinburgh Courant of 10th January 1705. 

 t Discourses on Dortbquakes; p. 312. 



