TRANSACTIONS OF SECTION G. 



801 



As to monthly rainfall, September is the wettest month on a 20 years' averao-e 

 at 7 places, 3'38 being the figure. The driest is March, 1-86. As to distribution 

 of rainfall, the N.W. corner of the -watershed is wettest, and the rainfall gradually 

 decreases as far as the N.E. corner, 25 to 30 inches. This remains the average, goino- 

 south, until the Avon watershed is reached, when it does not exceed 20 to 30 inches ; 

 and among the Ootswolds it rises to from 25 to 35 inches. 



On the west there is a triangular area of high rainfall, of which the Severn, 

 from Llanidloes to Shrewsbury, is the base, and the apex is at Ooleford, in the 

 Forest of Dean, and the two sides are the watershed line and the Severn. Over 

 this area the rainfall is from 30 to 40 inches. 



Height above sea-level does not seem to be a safe guide to the rainfall in the 

 district, as the following figures from four of the counties will show : — 



3. The Present Supply and Demand. 



Taking the rainfall over the district at 25 inches, roughly, the present demand on 

 the water supply is, primarily, that due to the following population : — 



Population 



Montgomerysh 

 Denbighshire 

 Kadnorshire 

 Shropshire 

 Staflford . 

 Warwick . 

 Worcester 

 Herefoi-d . 

 Gloucester 



re 



Total 



60,000 



6,000 



5,000 



280,000 



280,000 



100,000 



390,000 



20,000 



360,000 



1,500,000 



Taking the supply at 20 gallons a head per day, including manufacturing purposes, 

 it gives 30,000,000 gallons ; Liverpool and what is taken for the Shropshire Union 

 Canal takes 50,000,000 gallons a day ; mills, navigation, and to keep up the head of 

 water, 20,000,000 gallons (a very low estimate). So that at the lowest the present 

 demand is 36,500,000,000 gallons a year. 



1888. 



One year only (] 885). 



3p 



