174 D R I N K I N G P O O L S. 7. 



cattle from breaking up the edge of the 

 bafon. 



2. Artificial Rills. The Heights of the 

 r.orthern margin have neither fprings nor 

 rivulets (fome very few inftances excepted), 

 nor any other natural waters than the brooks 

 Avhich wind at the bottoms of the deep vallics 

 that divide them ; and the rivulets which 

 generally run at the feet of the precipices 

 that terminate them. 



Formerly thefc brooks and rivulets were 

 the only refourccs which the villages that 

 are fcattercJ on thefe Heights had for water, 

 both for the ufe of cattle and for domeftic 

 purpofcs. 



In proccfs of time wells were funk ; but 

 they arc of fuch a depth as to make the la- 

 bour of railing the water little lefs than that 

 of fetching it from a moderate diflance. 



This kind of natural neccflity has led to 

 an expedient, which, though not new in prin- 

 ciple, is perhaps entirely fo in limplicity of 

 execution, and might be pradtifed with great 

 advantage in many fimilar fituations. 



1 he nioreland mountains rife with gene- 

 rally an cafy afccnt, from the beds of the ri- 

 vulets 



