364 
REPORT—1847. 
November 10. At or near 9 a.m.:— 
Limerick .Nov. 10. 9 a.m .30'460 
Brecon .Nov. 10. 9 a.m. SOUW 
Bowness .Nov. 10. 9 a.m .30100 
Newcastle.Nov. 10. 9 a.m .30'59t* 
Applegarth .Nov. 10. 9 a.m .30-400 
November 10. Between 9 a.m. anti 9 p.m. : — 
.Makerstouu.Nov. 10. ll** 10” Adrtj ....30‘352 
SLVigeans .Nov. 10. e** O'" p.m .30*6+0 
In the north-west the barometer continued to rise from the approach oftk 
crest of the norlh-wt?st wave succeeding the trough before noticed. In co¬ 
sequence of the two movements the anterior slope became welMewlopci 
after the 10th. 
Nov. 4. 
Ramsgate. Stornoway. 
London. Largs. 
Largs. London. 
Stornoway. Ramsgate. 
From these considerations, we learn that about seven days elapsed dniis 
the transit of the posterior slope of the first north-west wave, the inW' 
venjng trough, and the succeeding anterior slope of the second north-ws 
wave. 9 
In the year 18+2, the interval that elapsed between the greatest derdop 
incnt of the posterior slope of wave No. 2, which came from the norih-*f* 
and that of the greatest development of the anterior slope of waveh'^* 
also from the north-west, was eight days (Report, 1846, pp-1+T t® 
During the transits of these slopes w'e had two waves of the south.west^^”^ 
with a small one, Crest No. 7. 
which succeeded the transit of the crest from the 
ihc 9th, we observe precisely the opposite effects to those notic^I 
occasion of the rise of this wave, or of that immediately preceding ii* " 
the autcHor slojie was coming up, the posterior slope of thenortli-^^**" 
extended from south-east to north-west, we consequently had the ^ 
in Me nor//Mcesi. Now the anterior slope extends in the same 
^d the crest is rapidly approaching, wc have the greatest/aU in 
• pon the transit of the crest of the north-west wave on the l2tb. 
curves, especially the northern, were characterized by a deep 
pitous fall. In the year 1842 a similar characteristic was observed; 
x^nt of the fall at the Orkneys and the time elapsed are nearly 
both cases, it apjiears that the tran-sits of north-westerly waves art- 
b-rizcd by deep and precipitous posterior slopes in the north-wert: «» 
in 80 far as the period of the great symmetrical wave is concerned. •'< 
period of this m m 1846 the barometera at Arbroath and Swrnowsr* 
dieatcd an equality of pressure, which was maintained for nearly ,• 
‘ I’®*'” superior to the Orkneys since the 6rh, sUgitb/*^ 
* ®.^*’**’^*^ cf the north-westcresLbutsoonregained itsspptfOt*. 
with our previous remarks on the slow-nw^ 
lott-<vr h**^*!* Ramsgate are the next that intersect st • 
lower flift' 'VI'slope of the south-west wave; 
amunni r Ramsgate and Dumfries; and Jersey exhibits a stiU 
the ctoi fall the transit of the cre^t « 
tiic dose of the great wave is exhibited in Table IX. 
• Reduced to the level of the sea. 
