and especially in Scotlafid. 75 



wind from NW. ; a little fresh snow on the hills. 12 a. m. 

 wind still blowing a severe gale from NW. 



" Walked to church to-day quite dry-footed, notwithstand- 

 ing all the rain which has fallen, — a strong proof of the po- 

 rous nature of the soil here." 



7th April 1840. — On this day, as mentioned in the news- 

 papers, " a powerful shock was felt in Crieff, the motion of the 

 earth being from west to east. It was accompanied by a roll- 

 ing hollow sound, which resembled distant thunder. At 

 Comrie, it was severely felt at the same time ; and in the 

 neighbourhood of that place, it caused several bells to ring." 



15th September 1840. — On the evening of this day, as a 

 correspondent at New Ross, in Ireland, writes, that town " was 

 visited with a dreadful gale of wind. About 7 p. m. it turned 

 to a hurricane ; a few minutes after that hour, there was felt 

 the shock of an earthquake. I saw the candlestick on my 

 table tremble, and the light appeared to emit a faint blue 

 colour. At this time a gust of wind came on, with such ter- 

 rific violence, that windows were blown in, chimneys were 

 prostrated, while two doors fastened with iron-bars were rent 

 asunder in the timber-yard of James Galavan. The sheds 

 were stripped of slates. The shock which the inhabitants of 

 New Ross experienced, will never be obliterated from their 

 recollection." 



26th October 1840. — The instruments at Comrie were 

 moved by the shock mentioned in the register. The one 

 meant to indicate shocks from below, was depressed three 

 quarters of an inch, indicating that the earth's surface had 

 been raised to that amount. Another instrument, on a dif- 

 ferent principle, but also constructed so as to be affected only 

 by the same kind of shocks, indicated an elevation of the 

 ground to the extent of half an inch. 



In regard to the amount of honzontal movement, as mea- 

 sured by an instrument on the principle of the ordinary pen- 

 dulum, the lower end of it made a rut or furrow in flour half 

 an inch from the centre, and in a direction W. by N. 



From these data, it may be inferred, that the shock had 

 come upwards to the earth's surface, at Comrie, in a direction 

 W. by N., and at an angle of from 45" to 60° with the horizon. 



