Charles Davison—British Earthquakes. 293 
Oct. 24, 10h. 10m., Ardochy. Duration of shock, several seconds ; 
intensity, I1V.; preceded, accompanied, and followed by 
three distinct rumbling noises, of which the first was the 
loudest. 
Nov. 18, 2h. 17m. or 14h. 17m., Ardochy. A slight shock, followed 
by a slight rumbling noise. 
The following are recorded by only one observer: (1) Aug. 19, 
9h. 30m., St. David’s (Pembrokeshire) ; a rumbling noise heard, with- 
out any accompanying vibration. (2) Aug. 23, 4h. 30m., Pembroke 
Dock; a shock of intensity, [V. (3) Sept. 11, at or some time after 
lh. 253m. (the observer’s watch had stopped at this time), Watertown 
near Northam (North Devon); three successive very slight impulses, 
accompanied by a rolling sound, apparently at a great distance below 
but to the south-west. I am indebted for this record to Mr. T. 
Mann Jones, F.G.S. 
Loco Broom EartruquakEe: Marcu 4, 1892. 
Time of occurrence, about Th. 30m. Intensity, V. Epicentrum, 
6 miles N. 26° W. of Ullapool, i.e. in lat. 57° 58’ 30” N., long. 5° 
13’ 30” W. 
Disturbed Area and Intensity.—I have received 37 records’ of this 
earthquake from 38 different places. Most of these places are close 
to the sea, but the coast in this part of Ross-shire is much indented, 
and the data are sufficient for determining the boundary of the 
disturbed area, though no doubt somewhat roughly. Besides these 
definite records, | am informed by Mr. R. MacRae that both shock 
and sound were noticed to the extreme end of the peninsula of 
Coigach ; and by Mr. A. McKenzie that the shock was felt on the 
south side of Little Loch Broom. 
The intensity of the shock was V. at Isle Martin; and IV. at 
Achduart, Achiltibuie, Achnahaird, Achninver, Ardindrean, Badin- 
scally, Badintarbet, Culeraig, Inverlaal, Isle Tanera, Kildonnan, 
Leckmelm, Lochinver, Morefield, Polglass, Scorraig, Scot Rae, 
Strathmore, and Ullapool. 
The boundary of the disturbed area corresponds to an isoseismal 
of intensity 1V. ‘This line includes an area 28 miles long and 17 
miles broad, and contains about 864 square miles, its centre being at 
a point 6 miles N. 26° W. of Ullapool. The longer axis is directed 
approximately N. 30° W. and 8. 30° E. 
Nature of the Harthquake-Phenomena.—Of the six places from 
which records are here given, Dundonnell Hotel lies near the head 
of Little Loch Broom; and the other five are close to the longer 
axis of the disturbed area. 
Inverbroom (Observer, Mr. J. A. Fowler, yr., of Braemore).— 
The shock like going over two or three small waves in a small boat; 
duration, three to four seconds. A very loud rumbling, as of a heavy 
1 For several of these records, as well as for their own observations, I am much 
indebted to the kindness of Mr. D. Fraser and Mr. R. MacRae, of Achiltibuwie, 
Miss EK. Lang, of Ardindrean, Mr. M. McKenzie, of Achindrean, Mr. W. Matheson, 
of Isle Tanera, and Mr. J. S. Stewart, of Isle Martin. 
