Essex Well-Sections. 157
Hempstead.—Royal Oak Inn.
Sunk and communicated by Mr. G. Ingold.
Brown clay ........................ 3
Dark clay........................... 7
Light blue clay..................... 23
33
Henney.—Gentries Farm.
Made and communicated by Messrs. G. Isler & Co.
Water-level 150 feet down. Yield, through a 21/2 inch pump,
180 gallons an hour.
High Laver.—The School.
Information from Mr. Penning, late of the Geological
Survey.
Boulder Clay ............... 24
Sand and gravel ............ 8
32
Ilford.—Broadway.
Dr. J. Mitchell's MSS., vol. hi., p. 71.
Dug 63 feet; the rest bored.
"Water rose to within 30 feet of the surface.