304 



GEOLOGY or THE ISLE OF WIGHT. 



Knighton. South-east part of the Pumping Station of the Ryde Corpora- 

 tion Waterworks, about 130 yards south of Knighton Mill. 1885. About 

 46 feet above Ordnance Datum. 



From information and specimens communicated by Mr. F. Newman, 

 Borough Engineer, to Mr. Whitaker. 



Shaft 15 feet, the rest bored. Water at 53 feet, rose above the surface, but 

 the tubes soon filled with sand. Water was again met with at 66 feet, and from 

 this downward the sand was all wet. The greatest quantity was at 53 feet. 



Depth 

 OF Speci- 



[Alluvial 

 Beds, about 

 124 feet.] 



[Carstone. 

 Base 

 uncertain, 

 about 40 feet. 



< 



[Sandrock 



Series, 



about 57 feet +' 



Dark -grey (blackish) sand, with plant-remains 

 Grey and brown dii'ty sand - - - 



Dry. Pieces of chalk, a little 'grey clay and 



pieces of flint 

 Moist. Grey and brownish sandy clay, with 



green sand, plant-remains and bits o£ flint - 

 ^Brown gritty sand - - - _ 



Dry. Brownish grey fii'm clayey sand 

 Moist. Brownish grey firm clayey sand. 



This and the above with small pieces of a 



more clayey character . - - 



Moist. Brownish grey clayey sand - 



Brown clayey sand, with quartz grains and "| 

 small pebbles ; only slight differences in > - 

 the specimens - - - - J 



Brown and grey clayey sand, like the above 

 but finer, partly hard, with a trace o£ i)lant- 

 remains _ . - - - 



Described as stony and with water at great 

 pressure. Specimen brown firm clayey sand 

 with quartz grains - - . - 



Dry. Grey and greenish-grey firm clayey 

 sand _ . - - - 



Described as moist Greensand, as also are the 

 beds below. Specimen grey and blackish 

 firm clayey sand .... 



Grey firm clayey sand, with quartz grains and 

 pebbles - _ . . - 



Greenish sand _ . . _ 



Green clayey sand _ . - . 



Fine grey sand - . _ . 



Loose light-grey fine sand - - - 



Fine grey sand . - - - 



MENS 



IN Feet. 



9 



10 



11 



12 

 12i 



22 



40 

 44 

 45 

 46 

 49 

 50 



51 



53 

 56 



66 



74 



78 



82 



91 



101 



110 



Knighton. Ryde Waterworks. Just north of the Engine House, 1885. 

 About 45 1 feet above Ordnance Datum. 



Communicated by Mr. F. New^man, Borough Engineer, to Mr. Whitaker. 



Gault, to Lower Greensand, with water, 46 feet. 



The boring at the Mill, of which a note follows this, is 185 feet to the north. 

 The difference of level of the bottom of the Gault in the two borings shows a 

 northerly dip of between 16" and 17°, supposing that the inclination is uniform : 

 it probably inci*eases northwards. 



Knighton. 



Ryde Waterworks. Boring in the Mill, 1885. 

 48 feet above Ordnance Datum. 



Floor of Mill 



Communicated by Mr. F. Nevv^man, Borough Engineer, to Mr. Whitaker. 



Gault, mixed with sand at 101 feet below the floor of the Mill. At 

 1204 feet a specimen of clayey sand, with clay and small pebbles [? junction of 

 Gault and Lower Greensand], 



