241 



The following rivers are on the north side of the Thames, and 

 fall into it, by taking generally a southward or south-eastward 

 course. 



The Churn. 



Ampney and Marston Brooks. 



The Coin. 



The Leach. 



Small streams in Bampton district. 



The Windrush. 



The Evenlode, Glyme, and Dame. 

 Beyond the Watershed of the Evenlode is that of the Cherwell, 

 but as this river falls into the Thames below Oxford, I have not 

 considered it in the Upper Thames area. 



The following are on the south side of the Thames, and fall 

 into it, by taking a northward or north-eastward course. 



The Eay. 



Small streams in the High worth district. 



The Cole. 

 Beyond Faringdon the Ock has its rise, and falls into the 

 Thames at Abingdon, below Oxford, and therefore beyond the 

 district which I have named. The Watershed of the Ock 

 contains 100 square miles. 

 ^.| The water from the springs of the Watershed, containing 123 

 1 1 square miles on the south side of the Thames, is not so abundant 

 ; as from the same quantity of square miles on the north side of 

 river. The dip of the strata is south-eastward, and descending 

 from the Thames on the south side, but towards the Thames on 

 the north side. The surface of the country slopes from the Chalk 

 Hills towards the Thames, and the water, which immediately 

 runs off, reaches the Thames, but at a slower rate than that 

 from the north. Part of that which is absorbed by the soil, and 

 part which is lost in the streams in the passage over open and 

 porous beds, sink through those porous beds to the upper 

 surface of the tenacious beds of the Oxford Clay, Kimmeridge 

 Clay, and the Gault; and the water descending the plane of 

 stratification, in a contrary direction to that of the river, is lost 

 to the Thames. The same remarks refer to the Watershed of 

 the Ock. 



