On Earthquakes and Movements of the Sea. 271 
of one idiom belong to one class, and its grammar to another. Even a 
new language sometimes results from this, differing from that whence it 
is derived, and further distinguished from it by the adoption of new 
grammatical forms altogether peculiar to itself.* 
On Earthquakes and Extraordinary Movements of the Sea ; 
and on remarkable Lunar Periodicities in Earthquakes, 
Oscillations of the Sea, and Great Atmospherical Changes. 
By RicHArD EpMmonps, Jun., Esq.t+ 
Mr Edmonds, in the former paper, after having noticed 
the earthquakes and extraordinary agitations of the sea 
which had previously occurred in Cornwall, described the 
oscillation of the 5th of July 1843, which he witnessed in 
Mount’s-bay :-— 
“ Tarrivedat Portleven, onthe north-eastern part of the bay, 
an hour after its commencement, and found the inhabitants, 
in a state of excitement, observing the sea, which, in the infe- 
rior of the harbour, was moving up and down in a most un- 
accountable manner, whilst at the mouth it was as smooth 
as usual. The énner basin of the harbour is about 150 yards 
long, lying N. and S.; the ouw/er part is double that length, 
and lies W.S.W., opening like the mouth of a bell. The 
agitation extended about 300 yards from the northern shore 
of the harbour, but not the least disturbance could be seen 
in the outer part for a hundred yards within the pier-head. 
The sea rushed inwards from the middle of the outer har- 
bour along the western arm, rising about four feet, and re- 
tired by the eastern arm, occupying between ten and fifteen 
minutes in the circuit. After a pause of eight or ten min- 
utes, it rushed in and out again in the same manner, and so 
* From the Bibliotheque Universelle de Geneve, No. 106, 1844, pp. 321- 
356. 
+ The two papers included in the above title, and from which we 
have extracted the more interesting portions, were read before the 
Royal Geographical Society of Cornwall, on the 13th October 1843, 
and 20th September 1844, and are printed in the Society’s Transac- 
tions.—Kp, 
