SOME ESSEX WELL-SECTIONS. 47
Coggeshall.—Gravel End Brewery, Mr. J. K. King. 1887 ?
Bored and communicated by Messrs. Isler.
Water overflows. Minimum yield 4,000 gallons an hour.
Possibly the top 5 beds classed with the Reading Series may be
the sandy bottom part of the London Clay.
Colchester, The Hythe.—Sewage Farm. 1888.
Made and communicated by Messrs. Tilley.
Earls Colne.—Messrs. Hunt & Co. 1888.
Communicated by Mr. D. R. Sharpe, of Braintree.
About 186 feet above Ordnance Datum. ? Shaft about 90 feet.
In the morning water stands about 87 feet down, and sinks from 71/2
to 8 feet after pumping ten hours, at the rate of 950 gallons an hour.