ON THE CIRCULATION OF UNDERGROUND WATERS. 225 



about 177 feet above mean sea-level, or 11 feet above the ordinary- 

 summer level of the river Tame, about half a mile distant. 



8. The analysis is as under : — 



_ , , Grains per arall. 



1 emporary hardness 6-13 



Permanent „ ' 3.5Q 



Total „ '.'.;; 9-63 



Chlorine •••••...... 1-61 



Total solids ..'.'. 25-06 



The v^ater contains no marked peculiarity. 



9. The section of the rock passed through is as under : — 



a. Soil, sand, and gravel 16 6* 



b. Red marl, with layers of sandstone . . . . .' 15 ] 1 



c. Hard conglomerate rock 5 7 



d. Argillaceous marl rock 39 11 



e. Fissured sandstone . , 139 



/. Argillaceous marl rock 5 



ff. Light fissured sandstone rock 30 4 



A. Red marl, with layers of greyish blue stone, and balls of 



marl of same colour with dark spot in centre, called ' fish- 

 eyed ' marl 410 



Total 168 



9a. As stated in reply to 4a, the well was practically dry until the 

 spring referred to was tapped, at a depth of 168 feet from the surface ; 

 though a little water oozed out at the bottom of the fissured sandstone 

 rock ' jf ' in the preceding answer. 



A singular phenomenon occurred with respect to one of the fis- 

 sures situate in this rock at 115 feet from the surface of the ground. 

 When first opened down to, a violent current of wind (simply atmo- 

 spheric air) rushed from it, which gradually spent itself, and was fol- 

 lowed thereafter at one time by an in-draught, succeeded at another by 

 an out-draught. It was observed that these variations of direction were 

 coincident with barometrical changes — i.e. when the barometer was rising 

 there was a decided indraught from the well into the fissure ; and, on the 

 contrary, while the barometer was sinking there was a decided out- 

 draught from the fissure into the well. It is evident, therefore, that the 

 fissure must be connected with large cavernous passages. Changes in 

 the weather were accurately foretold by watching the behaviour of a 

 candle-flame when placed near the fissure ; but the workmen were dis- 

 inclined to place much faith in its indications until an active outflow 

 during the whole of one day was succeeded at night by one of the most 

 violent storms of the period. 



10. The cover-drift over the rocks contains no sprino-s. 



11. There are no land springs to keep out of the well. 



12. There is a large down-throw fault between the well and the river 

 Tame, which brings the Keuper Marl beds face to face with the con- 

 glomerate beds in which the well is sunk. 



13. No brine springs were passed through in making the well. 



14. There are no salt springs in the locality. 



15. No wells or borings in the neighbourhood have been discontinued 

 in consequence of the water being more or less brackish. 



16. The well is lined with brick in cement to within about 2 feet of 

 the bottom. Its cost was 793Z. 15s. 6d. 



1882. Q 



