ON THE CIKCULATION OF UNDKRGROUND WATERS. 133 



tiou is noticeable. 5. Have never tested, but have taken over 3600 in that ypace 

 of time. 6. Has not been tested. 7. Do not think it is. 



8. Sulphate of lime 76-40 ^ 



Carbonate of lime 53 '81 i grains per gallon. 



Carbonate of magnesia . . 12-26 J 



9. The White Lias is said to be from 90 to 99 feet down ; no information in further 

 detail can be given ; another well is to be sunk soon about a |- of a mile west of this, 

 and a note of the strata will be carefully taken by Mr. Thomas, of Somerton, under 

 whose direction it will be sunk. 10. There are siu-face-springs | of a mile west, 

 which supply a good deal of water after rain and various pumps ; but I do not appre- 

 hend that much goes into this well, and no particular precautions have been taken. 

 12. No. 13. No. 14. No. 15. No. 



Mr. Edward Tylor, Wellington. 

 (These answers are given by Mr. Robert Knight, Wellington.) 



1. Centre of town of Wellington. 2. 230 feet. 3. Well 48 feet deep, 6 feet 

 diameter. 4. Ordinary pumping does not alter the level perceptibly. 5. 120. 

 6. There is usually 2 feet less of water in the suinmer : no diminution has been 

 noticed in this well. 7. Is not aflected by rain, and is too remote from streams or 

 sea. 8. Water pure, particularly " hard." 9. Loose sandstone covered by about 

 2 feet of clay. (There is a saying common amongst the country people here, to 

 the efl'ect that the breaking of the springs in winter is in some manner influenced 

 by the winds of the previous March.) 10. There is no surface-spring within a J 

 of a mile of this well. 12. No. 13. No. 14. No. 15. No. 



Well-sinkers say that within the last 20 yeai's the general level at which water 

 is reached has sunk 1 or 2 feet. 



Mr. J. M'=Murtrie, F.G.S., Radstock. 

 1. Tyning Pit, Radstock. 3. Diameter of pit 8 feet ; depth to chief spring or 

 feeder 200 feet. 4. Before pumping, about 90 feet ; after pumping, 200 feet. 5. 

 864,000 gallons. 6. It varies a few feet in level summer and winter ; the quan- 

 tity does not diminish. 7. Local rains increase the feeder ; the water rises to the 

 level of the brook in the valley. 



9. ? Lias 17 



Rhsetic about 18 



Red marls 16-5 



200 



10. No drift. 11, No drift. 12. None. 13. None. 14. None. 15. None. 



y 



Mr. Wilkins, Writhlingion. 

 1. liUmersdon Coal-Shaft New Pit. 2. Kilmersdon Pits, one 8 feet, one 10 feet ; 

 the 10-foot pit is down 42 fathoms 1 foot 6 in. to a hard stone ; 4100 gallons of 

 water per hour come into the pits. 4. Water rose 33 yds. in 24 hours, and stood 

 at that point. 5. 24 hours, 98,400 gallons. 6. This spring rises when the wind is 

 high, but not at any other time, though I have watched it many years. The above 

 spring is what we call " the red-gTound spring," and lies from 20 to 24 fathoms under 

 the Lias beds. 8. Stain red, and when in a vessel the sediment of the water is very 

 red. The water is hard. 9. Brown clay. Lias and clay, black and blue marl and 

 marlstone 13 fathoms ; 34 feet red ground with " lists " of blue stone and conglo- 

 merate 4 feet ; ditto 1 foot, then red ground 4 feet, then conglomerate again. 



[Sm-face beds Middle Lias, about 3 to 4 feet thick. 



Base of Lower Lias 37 feet „ 



Base of Rhsetic beds 5 ft, 4 in. „ 



All the beds above the Coal-measures are very thin in this district. — C. 1\I.] 10. Yes, 

 lias springs. 11. Yes. 12. Y^es; fault called the 100-fathom fault. 13. In coal-mea- 

 sures the water is very salt. 14. One in the Foxcote pit between the first and second 

 series of veins, I know none but Foxcote. 



