WELL SECTIONS IN THE NEIGHBOURHOOD. (^t, 



Lower London Tertiaries, 89 feet : . Ft. In. 



Plastic Clay ........ 40 o 



Sand . . . . . . . . . 49 o 



Thin bed of flints. 



To Chalk . . • 378 o 



Hard Chalk 40 o 



Soft Chalk, with water . . . . . . . 40 



Hard Chalk, no water 28 o 



Total ........ 450 o 



Haverstock Hill, Orphan Working School. About 170 feet above Ordnance 

 Datum. Shaft 230 feet, the rest bored. Water rose to 196 feet below the 

 surface. 



London Clay 



Woolwich and Reading Beds 



Thanet Sands . . . . . 



To Chalk 



KiLBURN Brewery. Water rose to within 150 feet of the ground. 



Ft. In. 



Blue London Clay ....... 235 o 



Mottled clay, pebbles, and sand . . . . 45 o 



To Sand Spring 280 o 



Regent's Park, Zoological Gardens. ? 128 feet above Trinity High Water Mark. 



London Clay 



Reading and Thanet Beds 



To Chalk . 



