276 Proceedings of the Koyal Society of Edinburgh. [Sess. 
(134) 1912, March 23, 6.8 a.m. 
A bumping noise, heard at Menstrie. 
(135) 1912, April 3, 10.33 a.m. 
A noise was heard at Airthrey and Menstrie, at the former place like 
that of an engine passing. 
(136) 1912, April 3, 5.20 p.m. 
A bumping noise, heard at Menstrie. 
(137) 1912, April 3, 5.35 p.m. 
A bumping noise, heard at Menstrie. 
(138) 1912, April 18, 8.14 p.m. 
A bumping noise, heard at Menstrie. 
(139) 1912, April 18, 10.15 p.m. 
A bumping noise, heard at Menstrie. 
(140) 1912, April 19, 8.11 p.m. 
A shock (intensity 4), increasing in strength to a maximum and then 
dying away, was felt at Airthrey, Alva, Doune, and Dunblane. The 
duration of the shock was about three seconds. The sound resembled a 
loud rumble of thunder. 
(141) 1912, April 19, 9.10 p.m. 
A rather strong shock, accompanied by sound and lasting four seconds, 
was felt at Airthrey. 
(142) 1912, April 19, 10.10 p.m. 
A shock, accompanied by the usual noise, and lasting about three 
seconds, was felt at Alva and Dunblane. 
(143) 1912, April 19, 10.30 p.m. 
A slight shock, felt at Doune and Tullibody. 
(144) 1912, April 19-20, midnight. 
A sound, heard at Doune. 
