276 Mr. W. Brown on the Oscillations of the Barometer. 



of England and in Ireland it is S.W., and at the localities 

 between the two it is S., S.S.E., or S.E. 



Names of Places. 



12. 



Orkneys !— *07 



Glasgow J--03 



Belfast J+-10 



Armagh +"19 



Shields 



Cork 



Bristol .... 

 Plymouth . 

 London .... 



Paris 



Christiania . 



+•05 

 +•39 

 +•13 

 +•17 

 + 12 

 +•13 

 -15 



+•09 

 + 01 



+•21 



+•09 

 +•27 



+•14 

 +•26 



+•33 

 +•33 



+■27 

 -•21 



13. 







+ 12 



+•07 

 + 11 

 •00 

 +•07 

 -•21 



-•19 



+•18 

 +•09 

 -13 



-•05 



03 



+•30 



•25 



+•18 

 +•05 



+•20 

 -•02 



+•05 



-•27 



+ •01 



14. 



— 



+•23 

 +•52 



+•56 

 +•40 

 +•46 

 +•26 



+•26 

 +•46 

 +•26 

 +•19 



+•08 



+•11 

 -06 



+•08 

 +■02 



+•19 



+•07 



-•05 

 + 13 



-10 

 -14 



-02 



+•38 





Namei of Places. 



1"). 



Orkneys . v . +'H 



Glasgow +*01 



Belfast --06 



Armagh — *03 



Shields -00 



Cork --20 



Bristol -00 



Plymouth -00 



London — *11 



Paris --06 



Christiania...... +*15 



-•03 



+ 



-01 + 

 •03| 



'+ 



.,7 + 

 • •02 + 



+ 



16. 



+•10 



+•14 



+•14 +-10 



+•181 



+-12I+-06 



+•12 +-21 



+•07 



04 

 +•14 

 -•05 



+ •08 



+•03 

 -03 



+ •15 

 +•23 



+•31 

 + •17 



+•21 

 +•15 



+•04 

 +•12 



17. 



+•08 

 +•20 

 +•41 

 +•23 

 +•25 

 +•60 

 +•37 

 +•47 

 +•44 

 +•22 

 -•06 



+•04 

 +•01 

 +•13 



-•06 



+•02 



+•05 

 +•11 



+•21 



+•22 



+•40 

 -03 



The phaenomena on the 12th commence a period during 

 which the restoration of the atmosphere to its usual pressure 

 and the rise of the barometer above its mean elevation take 

 place; but their chief interest is in their being those ensuing 

 on the cessation of an advancing storm. The occurrence of 

 the minimum of the atmospheric pressure in the south before 

 its taking place in the north has already been noticed, and is 

 also very apparent from the whole of the observations. Thus 

 at Cork, which seems to represent the point C, § 16, as being 

 in the line of the greatest intensity of the storm, the barometer 

 at 9 a.m. has risen 0'39 inch, and the rise lessens in both di- 

 rections towards south-east, or along the line eC of fig. 3 

 prolonged, and towards north on the line C B; and in the 

 latter direction at Orkney the barometer still continues to 

 fall, though very slightly. In accordance with this state of 

 the barometer (referring to the same paragraph), the wind is 

 blowing strongly from north-west in the south-west and mid- 

 dle portions, though still opposed by the south wind on the 

 extreme south. In the north, we have clear evidence of the 

 extensive low state of the barometer on the west, for at Chris- 

 tiania, about 10° to the east of the Orkney islands, the height 



