and especially in Scotland. 369 
in the earth. Both of them came from the north and died 
away in the south, and, although different in sound, were 
equally loud. The concussion was felt more in the upper 
parts of houses than in lower parts. The appearance of the 
atmosphere, at the time of a shock, is sometimes calm and 
dense, but often boisterous rainy weather precedes or follows 
after an earthquake.” 
From Crieff, about six miles east of Comrie, several reports 
were received, from which the following extracts are made :— 
(1.) Dr Murray Porteous, M.D., states :—‘* At 10" 15’ p.m., 
we had the most severe shock within the memory of man ; and 
20’ afterwards, another shock, very severe, but not nearly 
so severe as the one preceding. Each shock of earthquake 
consisted of two concussions, with a heave in the interval be- 
tween the concussions, and noise both before and after the 
concussions, and very loud between them. Lach concussion 
was therefore but momentary, though altogether the shock 
would last from 14 to 15 seconds. The concussion was the 
same as that produced by the fall of some large and heavy 
piece of furniture. Immediately after the first concussion, the 
house appeared to be lifted up and carried forwards, the wes- 
tern end being highest. It then fell back, and went into its 
proper position, when it formed the second concussion. Many 
walls were rent, but no mortar-built walls were thrown down ; 
dry stone-dykes were. Houses were so shaken and distorted, 
that the doors could not be shut, without the aid of a car- 
penter. Of the two concussions, the first was always the 
strongest. To almost every person east of Comrie, the shock 
and sound appeared to come from the west or north-west, and 
to pass to the east or south-east. To those west of Comrie, 
the sound and shock appeared to come from the east. I have 
seen a very few at Crieff, who fancied the shock to come from 
the north-east. I have seen no one, except one man, who can 
say that one part of a house was first struck before another. 
This man’s house is situated on the hill-side, at a very consi- 
derable elevation above the low ground. He heard the things 
rattle in one end of the house, before it shook his bed and the 
things in the east end. But though none here can say which 
