mee 
4 
; 
35 
the whole revolving mass of air was transferred bodily, in 
virtue of the progressive movement. But this assumption 
seems to be negatived by other facts. 
«‘ It has been already mentioned that the greatest force of 
the storm occurred at Armagh and Markree, before the epoch 
of minimum pressure, the interval at both places being about 
four hours and a half. A similar interval took place at Kal- 
liney, but in the opposite direction, the epoch of greatest in- 
tensity following that of least pressure by four hours and a 
half. 
‘‘ The last point which appears to demand notice is the 
curious fact, that there was a considerable interval between 
the epochs of the greatest intensity of the storm at Dublin and 
at Killiney, places only ten miles apart. The greatest force 
of the gale, at Dublin, took place between 1 and 2 p.M.; at 
Killiney it occurred between 5 and 6 p.m. There is a similar 
interval between the times of minimum pressure at the two 
places, the least height of the barometer occurring at Killiney 
at 1 p.m.,—or later than at Dublin by two or three hours. 
These differences are probably connected with the difference 
of altitude of the places of observation. 
“ T have thought it right to bring this subject under the 
notice”of the Academy, not only on account of the general in- 
terest which attaches to it, but also as a specimen of the re- 
sults which may be expected from the observations recently 
instituted by this Society. And I gladly avail myself of this 
opportunity to testify to the fidelity and accuracy with which 
the observations are now made by the men belonging to the 
Coast-guard service. So far as regards the meteorological 
part of the undertaking, little more seems wanting than that, 
on occasions such as that which forms the subject of this 
paper, the observations should be taken at shorter intervals.”* 
* <«Extra observations were taken during the gale at the Coast-guard 
stations at Caherciveen and Kilrush.” 
” p 2 
