30 
dent; but I deferred laying them before the Academy, until 
I could combine with them the observations made in other 
parts of Ireland according to the system recently organized. 
The following are the observations of the direction of the 
wind, and of the height of the barometer (reduced to 32° 
Fahr.),* at all the stations from which the results have been 
as yet forwarded to the Academy. The hours of observation 
are 9 a. M. and 9 Pp. M. 
Heicut or BAROMETER. DIREcTION OF WIND. 
-|19, A. M.|19, P. M.|20, A. M.|18, P. M.| 19, A. M.| 19, P.M. | 20, A. M. 
29:100/28°339/28°518/29-044 
29-094/28‘300)28°500/29-061 
28:928/28:242/28-650/29°150 
29°131/28°376/28-346/28-937 
28°782|27-975|28-298|28°823 
28°656|28°126/28°536)29-088 
28°362/28-528/28-982 
28°566/28-562/28°924 
28°455/28°706|29:267 
28°593/28°633)/28°993 
28°756)/29-080/29-370 
28°83 1/28°940/29°207 
CORBRDARARAMANGD 
‘¢ Tt will be seen from these observations that, at 9 a. mM. 
of the 19th, the wind was blowing from N. at Killybegs, and 
from S. at Donaghadee ; that it was blowing from S.E. at 
Portrush, and from N.W. at Castletownsend ; from 8.S_E. 
at Armagh, and from N.N.W. at Markree. The centre of 
the vortex was therefore over Ireland at that time, and be- 
tween the stations mentioned. 
‘** But the most satisfactory mode of discussing these obser- 
vations is to lay down, on a map, lines in the direction of the 
wind at the same moment of time at the several stations. It 
is thus evident that these directions are, very nearly, tan- 
gents to concentric circles, the common centre of the circles 
* “ The reduction to the sea-level has not been applied. The heights of 
the cisterns above the sea are small at all the coast stations. At Armagh 
this height is 211-0 feet; at Markree 131°5 feet.” 
