12 
land, on which the stations for meteorological and tidal obser- 
vations were marked, so as to show their geographical distri- 
bution. And he availed himself of the opportunity to give a 
brief account (derived from these observations) of a cyclonic 
gale, accompanied with a sudden fall of the barometer and a 
corresponding rise of the tide, which was felt over the whole of 
Treland on the 6th of last month. 
The Rev. Samuel Haughton stated, in confirmation of the 
President’s remarks, that the returns from the tidal stations 
showed an elevation of water varying from ten to eighteen 
inches above the mean height, corresponding to the period of 
greatest depression of the barometer. This depression would, 
however, only account for part of the elevation of water, the 
rest must be attributed to the force of the wind. 
Mr. W. Hogan read an analysis of the meteorological ob- 
servations communicated by Mr. G. Yeates, and published in 
the Proceedings. 
“The violent and fatal epidemics, affecting both animal 
and vegetable life, which prevailed during the preceding seven 
years, may have been, and probably were, in some manner 
connected with the state of the atmosphere ; and it has occurred 
to me that an examination of the state of the weather during 
that period might be interesting and possibly instructive. 
‘The quantity of rain which falls at any period, in this 
climate, is, in general, indicative of the state in which both the 
barometer and thermometer stood at the time. Bright skies 
and serene weather are in general accompanied by a higher 
mark both of the barometer and thermometer, and on the con- 
trary the mark is lower in cloudy, damp weather. It has, 
therefore, occurred to me that a table showing the quantity of 
rain which fell in each month during those seven years would, 
for this climate, give a general view of the state of the atmo- 
sphere at the time. The Royal Irish Academy has published 
