i8o SOUTH COUNTRY TROUT STREAMS 



able, the fall is 29 inches. It will be evident from these 

 figures that the rainfall over the district is moderately 

 heavy, but is very dependent on local conditions. On 

 the whole, here as elsewhere, the amount diminishes to- 

 wards the east, and is greatest on high ground ; but 

 there are many a])]\arent exceptions. 



" 6. Quality of \Vate?'S. — Flowing generally over favour- 

 able soils through agricultural districts not thickly peopled, 

 and over tracts of country not much cultivated, the waters 

 of the south of England, from whatever source, are 

 generally good. The rivers coming over the granite of 

 Cornwall and the granitic and metamorphic rocks of 

 North Devon carry excellent water, and the chalk waters 

 of the eastern district are also excellent." 



