Ponders End, Middlesex.—At the works of the London Jute Company. It will be seen from the [Figs. 267, 268], that this well is bored all but the top 4 feet, which is 5 feet across and steined with 9-inch work. The uppermost tube is 12 inches in diameter, decreased to 9 inches, and then to 8 inches, and ending with a 6-inch bore, unlined, in the chalk.
The strata passed were;—
| Alluvium, 6 feet;— | Feet. | In. |
| Clay and Mud | 3 | 6 |
| Peat | 2 | 6 |
| Sand and Shingle (Gravel). | 7 | 0 |
| London Clay, 15 feet;— | ||
| Blue Clay | 8 | 0 |
| Sandy Clay (basement bed?) | 7 | 0 |
| Reading Beds, 491⁄2 feet;— | ||
| Dead Sand | 10 | 0 |
| Mottled Clays | 22 | 0 |
| Sand and Metal (pyrites?) | 1 | 0 |
| Sandy Clay | 3 | 0 |
| Sand and Pebbles | 4 | 0 |
| Dead Sand | 1 | 6 |
| Dead Sand and Pebbles | 1 | 0 |
| Sand and Pebbles | 7 | 0 |
| Thanet Sand (?), 35 feet;— | ||
| Green Sand | 27 | 0 |
| Dead Sand | 8 | 0 |
| To Chalk | 112 | 6 |
| In Chalk | 290 | 6 |
| Total | 403 | 0 |
The water at this well overflows.
Freshwater, Isle of Wight.—Well, [Figs. 269, 270], sunk at Golden Hill for H.M. Government. The diameter of the shaft is 4 feet 6 inches, brickwork 9 inches thick, there are 3 feet in cement at the top of the well, and 3 feet 9 inches at the bottom. There are four courses in cement every 5 feet, internal work four courses in cement every 10 feet. The bore-hole is lined throughout with pipes of 6 inches, 5 inches, and 4 inches diameter respectively.
Figs. 269, 270.
Well at Freshwater, Isle of Wight.
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Winchfield, Hants.—Well, [Figs. 271 to 273], at the brewery of Messrs. W. Cave and Son. The shaft above the steining is lined with iron cylinders into which the bore-pipe is carried up.