Chapter XI (4)

+------------------------+------+------+------+------+------+-------+
| |No. 1,|No. 2,|No. 3,|No. 4,|No. 1,| L. |
| | Dark.| Grey.|White.| Grey.|White.|White. |
+------------------------+------+------+------+------+------+-------+
| Silica | 51·40| 59·10| 66·20| 54·40| 58·70| 65·40 |
| Alumina, total | 30·00| 35·16| 28·00| 37·00| 34·80| 25·40 |
| Magnesia | ·60| -- | -- | -- | ·50| -- |
| Carbon | 2·10| -- | -- | ·20| ·30| -- |
| Protoxide of iron | 12·60| 4·60| 1·60| 5·40| 3·50| 5·00 |
| Sulphate of lime | 3·40| 1·24| 4·40| 3·00| 2·00| 4·00 |
| +------+------+------+------+------+-------+
| |100·10|100·10|100·20|100·00| 99·30| 99·80 |
| +======+======+======+======+======+=======+
| Alumina out of the } | | | | | | |
| above soluble in } | 12·75| 12·50| 8·70| 13·20| 12·10| 4·46 |
| acid } | | | | | | |
+------------------------+------+------+------+------+------+-------+

The above alumina is that portion which is soluble in boiling
nitro-caloric acid, and therefore considered as not in
combination with the silica.

(Signed) WILLIAM HERAPATH, F.C.S.

The clays lie in the mine as follows:--

No. 1. Stock-brick Clay.
2. Top White Loam.
3. Top Black Loam.
4. Top Blue White Vein.
5. Top Blue Red Vein.
6. White Loamy Pottery Clay, Red Vein.
7. White Loamy ditto.
8. Best London, for bottle ware.
9.} Best Blue Vein.
10.} Best Bottom Black.

The productions of the Kinson Pottery, in stoneware, are sanitary and drain-pipes of every description, traps, syphons, and pans, and other articles; they are highly vitrified, strong, and durable, and of excellent quality. In terra-cotta, vases, rustic seats, brackets, garden edgings, chimney-pots, architectural enrichments, and other goods are produced, as are also fire-bricks, arch and wedge bricks, &c. The quality of the terra-cotta is extremely good and durable.