214 EEPOET— 1882. 



level is 168 feet above the sea ; at Teignmoutli ; at Dawlish, -where the 

 water-level is 71 feet above the sea ; and at Bramford Speke, near Exeter. 



Near Exeter the Lyons Holt spring issues at 126 feet above sea-level, 

 yielding towards the town supply 47,000 gallons daily of very pure water, 

 which is extensively used for drinking-fountains. 



The following gives an abstract of the facts, of the more important 

 wells in the Exeter district : — 



Higher up the valley of the Exe and its tributaries private supplies 

 ■are obtained at Crediton. 



North is the watershed separating the streams flowing into English 

 and Bristol Channels. 



At Willington a well 230 feet above the sea is sunk to a depth of 

 48| feet ; only a small quantity of water is pumped from it. 



At Taunton numerous private wells give a supply of rather hard water 

 from the New Red Sandstone. 



At Somerton hard water is obtained from a well 129^ feet deep ; the 

 White Lias is said to occur in it at 90 to 99 feet. 



At Wembdon a private well in triassic conglomerate yields hard 

 water to a well 30 feet deep, at 60 feet above the sea. 



At Wookey, near Wells, 70 feet above the sea, a private well, 33 feet, 

 yields a constant supply, uninfluenced by the seasons as to quantity, but 

 decreases 9 feet in level after dry weather. 



In Bristol the wells vary in depth from 60 to 300 feet, some only pene- 

 trating peat and gravel, others passing through triassic marls, whilst a 

 few penetrate the coal measures. 



At Braysdown Colliery, near Bath, a shaft 500 yards deep, passing 

 iihrough New Red Sandstone and coal measures, yielded water at the 

 •bottom of the pit containing 1,008 grains of common salt, or 1,440 parts 

 iper 100,000. 



In the Tiverton Coal-i^it, near Bath, 16,800 gallons per 24 hours are 

 yielded by plastic shale in the Blue Lias, 130 feet above the White Lias, 

 whicli is 12 feet thick, resting on 23 feet of Rhsetics, lying on the New 

 Red Marl ; the water contains 112 parts per 100,000 of common salt. 



The Tyning Pit, Radstock, intersected a spring yielding 864,000 

 gallons per day at 200 feet from the surface, at the bottom of the Red 

 Marls. 



At Kilmersdon New Coal Shaft, Writhlington, a 10-feet shaft inter- 

 sected a spring at 253^ feet. On cutting through a hard base of stone the 

 water rose 99 feet in 24 hours, and stands at this level, yielding 98,400 

 gallons per day of hard water. The section passed through was liassic 

 clay, black and blue marl 78 feet ; 34 feet of ' red ground,' with bands of 

 blue stone ; conglomerate 5 feet ; red beds 4 feet ; then conglomerate 

 again ; the remainder of the section is not given. The late Mr. Charles 

 Moore considered the last, 5 feet 4 inches of the Lias, in this section to 

 belong to the Rhsetic beds. 



