On the Storms of Noremher 1838. 205 



to N.NE., there can be no doubt; and from Its moving in nearly 

 the same track, but travelling with twice the rapidity, it overtook 

 the first storm about the middle of Scotland ; in consequence of 

 which, the indications of two separate storms became indistinct in 

 these northern parts. 



There were many circumstances shewing that this second storm 

 Lad a rotatory as well as a progressive motion, and that the centre 

 of the stormy circle travelled along a path considerably to the west 

 of the British islands. (I.) One of these was the greater magni- 

 tude of the angle made by the wind in veering, and the greater 

 rapidity with which the veering was effected, in places situated 

 to the west, than in places situated to the east. At Limerick, the 

 wind veered 158" in 28^ hours ; at Penzance, 112° in 24 hours; 

 at Greenwich, 79^ in 24 hours ; at Kinfauns, 90" in 24 hours. (2.) 

 When the storm ceased, the wind was blowing more from the 

 north in places situated to the west. On the west coast of Ireland, 

 it was blowing W. or W.NW. ; in the south-west of Scotland, and 

 at Holyhead, it was blowing W.SW. or SW. (3.) The barome- 

 ter was lowest towards the west ; and by classing together those 

 places where the depression was the same, it appeared that these 

 places lay in lines or zones running in a N.NE. direction, in each 

 of which the barometer stood at a lower level in proportion as its 

 situation was toward the west. In London and Greenwich, the 

 barometer stood at its greatest depression at 28.70 ; at Lime- 

 rick, it stood at its greatest depression at 27.49, both observa- 

 tions being reduced for height. (4.) It was found that a storm 

 had traversed the eastern part of the Atlantic, moving in a N.NE. 

 direction, having been felt at the Garonne on tiie 27th, 28th, and 

 29th ; at Oporto, from the 24th to the 27th ; at Lisbon, on the 

 night of the 23d. It appeared that several vessels in the middle 

 of the Atlantic had, on the 28th, been dismasted by a N W. gale, 

 whilst the Great Western steamer, some degrees to the NW. of 

 these ships, though on that day and the next she experienced no 

 gale, encountered a heavy swell from tlie N.NE. 



It appeared from these, and some other data which were de- 

 tailed, that this storm moved N.NE. over the Atlantic, at the rate 

 of about twenty miles an hour ; that it had also a rotatory motion^ 

 and that the centre of the circle passed very considerably to the 

 west of the Britisli islands, so that it was only a segment of the 

 storm which swept over those islands. 



It was mentioned that, before tiie most furious part of the gale 

 reached England, and before the barometer reached its greatest 

 depression, a storm-wave had entered the Irish and Bristol Chan- 

 nels, and caused, in most of the harbours there, on the night of the 

 28th November, an unusually high tide. 



