Charles Davison—British Earthquakes. 291 
distant, and it would seem that the insects which have been collected 
of late years point to the same conclusion. 
The attempts which have been made from time to time to naturalize 
goats and fowl on these islands with the charitable object of affording 
food to those who may be shipwrecked there, has been unsuccessful, 
owing possibly to the absence of a perennial supply of fresh water 
on Narcondam and the brackish character of the hot spring on 
Barren Island. 
I have not as yet seen a promised account of the flora of these 
Islands by Dr. Prince. Doubtless it deals or will deal with evidence 
similar to that afforded by the fauna. 
IJ.—On tHe British HartrHquakes oF 1892. 
By Cuartzs Davison, M.A., 
Mathematical Master at King Edward’s High School, Birmingham. 
URING the past year a comparatively large number of earth- 
quakes have been felt in Great Britain, the most notable 
being those which originated within a short distance from Pembroke, 
between the 17th and 22nd August. This series will form the 
subject of a separate memoir. In the present paper are given a 
list of the earthquakes of 1892, complete so far as I can make it, 
with descriptions of three important shocks felt in the parish of 
Loch Broom (Ross-shire) on March 4, and in south-west Cornwall 
on May 16 and 17. 
It is my pleasant duty to express my obligations and to offer my 
hearty thanks to the numerous observers who have assisted me in 
my work. Many of the accounts which they have communicated 
are of great interest and value, and I much regret that it is im- 
possible to insert them all here. It was necessary to make some 
selection, and those only are given which, from various circum- 
stances, happen to throw most light on the origin of the shocks. 
Every note, however, has been considered, and has been of some 
service in writing these descriptions; and I trust that, if any of 
my correspondents should happen to see these pages, they will not 
think their kindness and trouble have been thrown away if their 
own reports do not appear in full. May I also add how grateful I 
should be for notice—especially early notice—of any earthquake, 
whether real or only suspected to be such? The completeness of 
the seismic record in a given district is of the first importance; and, 
if Great Britain forms a region in which shocks are slight and some- 
what rare, there are yet parts of it whose seismic history would help 
towards the solution of several geological problems. 
As in previous papers,’ the hours are numbered from 0 to 24; the 
time being Greenwich mean time. The intensity is estimated in 
1 On the British Earthquakes of 1889, Grou. Mac. Dec. III. Vol. VIII. 1891, 
pp. 47-67, 306-317, 364-3872. On the Inverness Earthquakes of November 15 to 
December 14, 1890, Quart. Journ. Geol. Soc. vol. xlvii. 1891, pp. 618-632. On 
the British Earthquakes of 1890, with the exception of those felt in the neighbour- 
hood of Inverness, Gzou. Mac. Dec. III. Vol. VIII. 1891, pp. 450-455. Record 
of Observations on the Inverness Earthquake of November 15, 1890, Birmingham 
Phil. Soc. Proc. vol. viii. 1891. On the British Earthquakes of 1891, Guou. 
Mag. Dec. III. Vol. 1X. 1892, pp. 299-305. 
