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be abandoned at a total depth of 1,212 feet from the surface. 

 The water from all these Springs was extremely Salt. The 

 Manager tested it on several occasions by boiling a gallon of it, 

 and when the water was boiled away, he had a common tea cup 

 full of Salt left on each occasion." 



At the Old Mills Colliery, on the other hand, where two 

 shafts have been sunk through exactly the same ground, although 

 a good deal of water was met with, it was uniformly fresh ; 

 and it remains so to this day. In this instance, however, 

 the circumstances are somewhat different, the Secondary beds 

 overlying the Coal Measures being very thin, and the shaft 

 having passed direct from the New Eed Sandstone into the 

 Farrington Measures, without any of the Eadstock series 

 occuriing between. 



It may be instructive to compare the depths at which these 

 Brine Springs have been met with in the different localities to 

 which I have referred, taking the sea level as the datum for 

 comparison. 



As to the probable source. — The frequent occurrence of these 

 Salt Springs in the Deeper Measures in and around Eadstock, 

 has naturally given rise to some speculation as to their probable 

 source ; and whatever their origin may be, it seems tolerably 



I 



