388 DR. CHARLES DAVISON ON THE [ Aug. 1902, 
k. September 27th, 1.47 p.m. 
Intensity, 5. Number of records 2, from 2 places. 
The intensity of this shock was 5 at Holm, and probably 4 at 
Aigas (6 miles south-west of Beauly). The sound was heard at 
both places, and at Holm resembled that of distant cannon. Con- 
sidering the intensity of the shock, it is remarkable that no more 
records are forthcoming; but there is no reason to doubt its 
genuineness. 
i. September 28th, about 44.m. 
Intensity, 5. Number of records 2, from 1 place. 
A slight shock noticed in Inverness. There is no record of any 
sound. 
September 28th, 11.50 a.m.: Glen Urquhart.—The exact position 
of the place of observation is uncertain, but it is probably near 
Loch Ness. Both shock and sound were extremely slight, the 
intensity of the former being less than 4. 
September 28th, 1.40 p.m.: Loch Ness.—The observer of the 
preceding shock was in a boat on Loch Ness at 1.40 p.m. The boat 
moved distinctly, and a slight tremor was felt. | 
September 29th, about 4.30 a.u.: Inverness.—A slight shock, 
accompanied by a faint sound like distant thunder. 
me September 29th, 9.6 p.m. 
Intensity, 4; epicentre, lat. 57° 26°1' N., long, 4° 17°0' W. Number of 
records 6, from 5 places (Pl. XII). 
The places where this earthquake was observed lie within an 
area which is probably circular in form, about 84 miles in diameter, 
and including about 57 square miles. The centre is nearly 1 mile 
east of Dochgarroch and three-fifths of a mile south-east of the fault. 
(At 9.10 p.m. a sound, as of a carriage passing, with scarcely 
any accompanying tremor, was heard at Bridgend, 3 miles from 
Dalarossie and about 13 miles from the epicentre.) The shock 
was slight, and the sound faint and of brief duration, leading, 
in conjunction with the approximate circularity of the disturbed 
area, to the inference that the focus was very small. 
September 29th, 11 p.u.: Aigas.—A rumbling sound heard. 
September 29th-30th: Drumiilan (Drumnadrochit).—During the 
night, two slight shocks were felt before the shock of September 30th, 
3.39 4.m., by observers who were awake. One of these may be 
identical with the sound heard at Aigas at 11 P.M. on September 29th. 
n. September 30th, 3.39 a.m. 
Intensity, 7; epicentre, lat, 57° 24°5' N., long. 4° 19°3'W. Number of 
records 54, from 33 places (Pl. XIT). 
On the map (Pl. XII) are shown the isoseismal 5, part of the 
