Kingdom.]

Class 1.—MINING AND MINERAL PRODUCTS.South Side—Areas S. 1 to S. 27.

127

Junction of gneiss with granite, intersected by a veinof felspar.

Fine-grained granites. Syenites.

Porphyritic granite.

Syenite, with a vein of felspar.

Rock, of carbonate of lime and serpentine.

Granite studded with garnets, from the summit of BenResipole, a mountain above 3,000 feet in height.

A very large specimen of the same.

Quartz rock.

Sulphuret of lead, in a matrix of calcareous spar, fromthe Smithy Vein (Feedonald district).

Sulphuret of lead with calcareous spar, a continuousstring of lead ore, from the red vein of Feedonald.

Crystallized sulphuret of lead (the primary cube), fromthe same vein.

Sulphuret of lead, with sulphuret of zinc and crystal-lized calcareous spar in the cavities.

Sulphuret of zinc and calcareous spar, from Corantee.

Cubic sulphuret of lead with calcareous spar.

Sulphuret of lead in calcareous spar, from Clashgorammine (middle district).

Sulphuret of lead; sulphuret of lead, embedded incalcareous spar; and sulphuret of lead, partly crystallizedwith calcareous spar—from Belsgrove Mine.

Junction of granite and mica slate.

Lias limestone; from the north side of the promontoryof Ardnamurchan.

Lias limestone, from the south side of the promontory.

A large mass of sulphate of barytes, a substance consti-tuting much of the matrix or veinstone of lead ore.

[At Strontian, in the western part of Argyllshire, a bossof granite is seen penetrating the gneiss, which abounds inthe district; and a little further to the west, a largequantity of porphyry and trap occurs, covered, in two orthree places near Ardnamurchan, by deposits of the ooliticand liassic period. In the granite, and near its junctionwith the gneiss, mineral veins are found, containing leadand copper; and in one of these was first observed themineral thence called strontianite , or strontites , a carbonateof strontia, usually associated with calc-spar, sulphateof barytes, and galena. The metal called strontian, obtainedfrom this mineral, was first described by Sir H. Davy , andresembles barium in its properties and appearance. Car-bonate of strontia is chiefly used in the production ofthe nitrate which is employed in giving a red colour tofireworks.

Harmotome and morvenite are hydrous silicates ofalumina and barytes. Brewsterite is also a hydrous sili-cate of alumina, but contains strontia as well as barytes.The other minerals are well known. The lias is one ofseveral small patches round the trap rocks of Ardnamur-chan, Morven, and the Isle of Mull , and contains numerousorganic remains.—D. T. A.]

district is five, the thinnest of them being 6 inches, butthe thickest nearly 40 feet thick, and they are worked at adepth of from 50 to 150 yards below the surface.

The mode of working the thick bed is not muchunlike that adopted in South Staffordshire for coal; butthe roof being generally uniform and tolerably tough,and the mine without noxious gases, the works are moresimple. The salt is blasted, and large pillars are left tosupport the roof. Upwards of 60,000 tons of salt are ob-tained from the Cheshire mines, and a large quantity isalso manufactured from brine-springs and other similarsources, in Cheshire and Worcestershire . The greaterpart is exported from Liverpool.—D. T. A.]

58 Hill, John, Ringsend, Dublin — Manufacturer.

Basket and pink salt for table use; Irish fine, or butter

salt, and coarse or provision salt.

[There are no natural deposits of salt in Ireland , andthe various kinds exhibited by and prepared in thatcountry are generally procured from the English saltmines.—D. T. A.]

59 -, Brassington , Derbyshire —Producer.

Wad and white-lead ore.

60 Roake, James White, Newbury, Berkshire —

Producer.

Specimens of soils which surround Newbury , Berks,and the uses to which they are applied.

Nos. 1 to 4. Various clays. 5. White. 6. Red. 7. Yellowochre. 8. Fine white sand. 9. Coarse sand. 10. Ferruginoussand. 11. Ochreous sand, used by iron founders. 12. Greensand, with oysters embedded. 13. Gravel , rough and peb-bly. 14. Caicined pebbles, reduced to coarse and mediumgrit. 15. Fine pebbles, with stucco made from it, tocompare with a coloured fragment and tessera fromHerculaneum. 16. Chalk from Kintbury, with shellspeculiar to that deposit. 17. Whiting. 18. Limestone.19. Stone lime. 20. Chalk lime, through which gas haspassed. 21. Peat from the Rennet valley. 22. Peat ,condensed by Cobbold's patent process. 23. Peat , pul-verised for horticultural uses, and disinfecting purposes.24. Peat ashes, for the agriculturist.

Samples of bricks, tiles, and pottery.

[Newbury is situated on the lower tertiary beds imme-diately overlying the chalk, which crops out at a shortdistance from London to the north, south, and west.The river Kennet crosses the chalk from the west, runsthrough the town towards the east, and enters the Thames near Reading. The tertiary deposits here include a mo-derate thickness of the London clay overlying the mottledclays and sands of the lower or plastic clay series, in-cluding a pebble bed, mottled red clays and sands, andthe whole covered up with a little gravel.—D. T. A.]

56 Dann, Thomas, Reigate —Producer.

Greystone lime, from the lime-works, at Reigate Hill,on the estate of the Countess of Warwick.

57 Worthington, William, Northwich, Cheshire —Proprietor.

3 .°£ r °? k sklt > as produced from the minnear Northwich, Cheshire .

Specimen of refined salt, for curing fishFme high-dried table salt.

Malvern salt, much esteemed for table useLarge-grained bay salt, used for various pm-poses.[The salt-mines of Cheshire are worked in the new rsandstone of that county, the salt being in large mas<of irregular form associated with marl and gypsuiIn its natural state it is of dull red colour, semi-traiparent, and though sometimes cubical in crystal meusually massive. The number of saliferous beds' in t

61 Cowper, John, Alston, Cumberland —Proprietorand Producer.

Crystal of sulphate of barytes; the largest on record,weighing 112 lbs.

Specimens of witberite, or carbonate of barytes, re-markable for their beauty and crystallization; taken froma lead and carbonate of barytes mine at Fallowfield, nearHexham, Northumberland , where it is raised in thelump, in great abundance. It is extensively used m themanufacture of glass, chemicals, porcelain, &c. I hisextensive mine, now the property of Walton and Cow-pers, was thrown away as of no value, until lately, whenthe present proprietors bought the mines, and introducedthe article, as a mining product, into the market.

Sulphate of barytes, found in withente.

Bromlite (baryto-calcite) on bitterspar and pseudo-morphous quartz ; from Brownley Hill. Barytes andgalena, from Fallowfield. Coal, galena, shale, &c.Carbonate of lime, from Alston.

L 2