VOL. XVII. (3) WATER SUPPLY OF GLOUCESTER 



351 



KETFORD BORING in TRIASSIC BEDS 



Ground -level of 

 B.H. 9092 feet 

 above O.D. 

 Water-level in R. 

 Leadon on Dec. 

 2nd, 1910. 

 Do. Oct. 7th, 1910 g 

 & on July 3rd, 1911. -^ 

 i.,ii. — Specimens in -^ 

 Gloucester Museum "S 

 frotn between 31^- g 

 32 and 32f -33 ft. £ 



iii. — Specimen from S 

 about 84' 6"-86'. IT 



25- 

 33 --- 



141 - 



r M7if 



iv., V. — Specimens 

 from i83'4"-i84' 



vi. — Specimen from 2 



271-2 //. :r 



vii. — Specimen from S 



322' 8"-324' 2". * 



viii. — Spe cime n 

 from 351 '-352' 6* 

 X. — Specimen from 

 356' 9'-358'- 



235 

 239 



303 



353 

 359 



53 



30 



64 



50 



6 



Iron cap. 



1 On Aug. 1st, 191 1, the water-level 

 / was 2 ' 11" below top of iron cap 



Percussion boring commenced Oct. 



(Diameter of borehole 18J") [7th, I910. 



Reddish sandstone-beds with pebbly layers. 



Rotary boring commenced Oct. 28th, 



Sandstone. [1910- 



(i.) — Sandstone with pebbles (i ft.) 

 overlying (ii) conglomerate (i ft.) 



Sandstone-beds (in some places finer 

 grained than in others) with 

 pebbly layers at various horizons. 

 Cores all ground to sand. 



(iii.) — Sandstone-bed with more 

 numerous and larger pebbles than 

 in the solid core at 32 ft. 



Sandstone-beds with pebbly layers. 

 Cores all ground to sand. 



Sandstone without pebbles (i' 6"). 

 Hard Sandstone with more and 

 larger pebbles than usual (5'). 

 Core drawn solid in four pieces. 



Sandstone-beds. 



Cores usually ground to sand 



(iv.) — Sandstone-bed overlying (v.) 



conglomerate. 



Core drawn solid in three pieces. 



Sandstone and conglomerate beds. 



Cores drawn solid as a rule. 



Sandstone-beds. 



Cores usually ground to sand. 



Sandstone with a thin bed of marl 

 and a little conglomerate. 



Sandstones and conglomerates. 

 Cores usually drawn solid. 



Sandstones with varying quantities 



of pebbles. 



Cores drawn solid. 

 Commenced boring with a 14!^" 



crown. May 31st, 1911. 

 Conglomerate. Pebbles larger than 



those in the higher beds. Clay 



" nodules " present. 



