266 Proceedings of the Royal Society of Edinburgh. [Sess. 
(43) 1907, June 14, 1.59 a.m. 
A slight shock, felt at Menstrie, consisting of two vibrations, each 
accompanied by sound. 
(44) 1907, June 20, 3.36 p.m. 
A shock (intensity 4), felt at Alva and Menstrie, preceded and accom- 
panied by a rumbling sound. 
(45) 1907, July 5, 9.48 p.m. 
A slight shock, consisting of a single vibration, felt at Menstrie. 
(46) 1907, July 21 or 28, between 5 and 7.30 p.m. 
A slight shock, felt at Menstrie. The day of the shock was one of the 
last two Sundays in July. 
(47) 1907, September 18, about 5.30 p.m. 
A very slight shock, felt at Menstrie. 
(48) 1908, January 19, 1.27 a.m. 
A distinct shock, felt at Menstrie. 
On February 9, 1908, at 4.6 a.m., a shock, stronger than the preceding, 
was felt at Menstrie, but only, so far as known, by one observer. 
(49) 1908, May 1 , 6.54 p.m. 
A shock (intensity 4), felt at Airthrey, Alva, Dunblane, Menstrie, and 
Tillicoultry. The shock consisted of a single series of vibrations, with 
one maximum of intensity, and lasted two seconds. It was accompanied 
by a loud noise like a muffled explosion. 
(50) 1908, May 2, 7.5 a.m. 
A shock (intensity 4), lasting three seconds, felt at Airthrey, Alva, and 
Menstrie. At Airthrey it consisted of two concussions, with intervening 
tremor, the latter concussion being the stronger. The shock was preceded, 
accompanied, and followed by a rumbling sound. 
(51) 1908, May 10, 12.48 a.m. 
A shock (intensity 4), lasting about four seconds, felt at Airthrey, 
Alva, Menstrie, Tillicoultry, and Tullibody. At Airthrey and Menstrie 
it consisted of two concussions, each accompanied by a loud noise like an 
underground explosion, the former being ^much the stronger at Airthrey, 
and both of about the same intensity at Menstrie. 
