Meter: ology. 495 
3. Of Rain. 
In the 5th volume of the Memoirs, part 
2d. published in 1802, I have given an ac- 
count of the depth of rain which fell in 
Manchester during the 8 preceding years, 
with theaverage monthly and annual means.— 
Having now a further series of observations 
for 17 successive years, it may be proper to 
give a detail of these last, and to incorpo- 
rate them with the former, so as to obtain a 
general average for the whole period of 25 
years. 7 
The rain-gage has been all the time situate 
in a garden on the S. E. side of Manchester ; 
it is twenty yards distant from any house or 
elevated object that can influence the fall of 
the rain. The gage is a funnel of 10 inches 
diameter, and the top is surrounded by a 
perpendicular rim of 3 inches high, to pre- 
vent any loss by the spray ; it is fixed in a 
proper frame with a bottle for the water, and 
it stands above 2 feet above ground. 
