The Rev. H. Lloyd on the Meteorology 0/ Ireland. 



471 



Very few results of a general nature can be drawn from these observations, 

 the distribution of vapour being governed by the proximity of the station to the 

 sea, or by other local circumstances. It will be seen, from the last column of 

 Table xxvii., that the yearly mean tension of vapour increases, although not in 

 any regular progression, in proceeding from the north to the south of the island. 

 Its mean value for the entire island is 0'326 of an inch; its greatest value (at 

 Westport) is 0-374. 



The following Table contains the values of the relative humidity, the state 

 of complete saturation being represented by 100 : — 



Table XXVIII. Humidity of the Air. 



The distribution oi humidity is still more under the influence of local cir- 

 cumstances, and therefore still less regular. Thus, Portrush and Castletown- 

 send — the one at the northern, the other at the southern extremity of the island — 

 have nearly the same mean humidity ; while Portarlington and Athy — places 

 near each other, and both inland — are almost at the opposite extremities of the 

 scale. The driest station is Portarlington; the 7nost humid, Westport. At the 

 latter place, in fact, the air is nearly saturated with moisture, the place of ob- 

 servation being entirely surrounded by water, and but a few feet above the sea. 

 The mean humidity for the entire island, for the year 1851, is 87. 



