Kingdom.]
Class 1.— MINING AND MINERAL PRODUCTS.South Side—Areas S. 1 to S. 27.
141
199 Long, W.—Producer.
Flags from County Clare.
200 Hill, J., C.E.—Producer.
Building material from Kilrush. . .
201 Taylor, John, Stamford —Producer.
Marble, sandstones, slate, limestone , &e., all obtained
within sis or seven miles of Stamford.
202 Powell, W. J., Tisbury, near llindon, Wilts —
Producer.
Varieties of hard and soft building stone, from Tisbury.The hard from Chicksgrove quarry, 20 feet below thesurface, forming part of the Portland bed. The softfrom Tuckermill quarry, 5 feet deep. The hard is usedfor steps, pavements, tablets, monuments, &c. The soft,for fronts of houses, cornices, and general building pur-poses. Both are adapted for resisting the influence ofthe weather.
A fish from the oolite formation at Tisbury.
Specimen of part of a fossil tree from Tisbury,. foundin an excellent state of preservation in the oolite for-mation. _
203 Driver, William, 4 Lyon’s Inn, Strand—
Producer.
Specimens from the Chevin stone quarry, Otley, York-shire. _
204 The Lessees of the Stanhope Limestone
Quarries— Proprietors.
Polished specimens of the cockle strata in the car-boniferous limestone; from Weardale in the county ofDurham.
Specimen of the same in the rough state.
The lime manufactured from this stone is valuableas an agricultural manure. It is used as a flux in smelt-ing iron ore; also for purifying gas; for tanning, and forother chemical purposes. The analysis is as follows,viz.:—
Carbonate of lime .
95*1
Carbonate of magnesia
2-5
Earthy matter • •
1-3
Residuum ....
1-1
100-0
206 Sinclair, J., Forse, Thurso , Scotland —
Manufacturer.
Slab of paving stone, from Forse Rock Hill Quarries.(See Outside, No. 13.)
207 Royal Dublin Society — Producer.
Specimens of Valencia flags.
208 Dawbarn & Co.— Producers.Manufactured slate.
209 Stirling, Thomas, jun., Belvidere Boad, Lanibeth
—Designer, Inventor, and Manufacturer.
Slate cabinet, illustrating the applicability of slateto the formation of strong-rooms, powder-magazines,larders, venison-houses, partitions to rooms, water-ciosets, &c. The covering of the cabinet is formed bythe bottom of a slate cistern, consisting of slabs of slate^ured together in panels by a method invented by theexhibitor. The same method is also applicable to thecovering of the roofs of mansions with slate.
klate is adapted for use in fitting up the floors andcompartments, of public baths and wash-houses : andor stables, being applicable to mangers, stall divisions,mings, floors, and drains. It is also adapted for bal-conies, larders, wine-cellars, dairies, and various otherpurposes.
[ 1 .]
Articles exhibited in the cabinet, &c., and in generaluse:—
Patent self-acting filter on stand. Filter, which canbe supplied by hand or made self-acting. Small slatecistern. Pickling trough. Samples of slate roll ridge ;common saddle-back slate ridge. Sunk channel in slate.Solid slate sink. Slate sink constructed of five pieces.Washing-basin for water-closet, &c. Ornamental loo-table top. Sofa and side-table ornamental tops. Chess,or ladies’ work-table tops. Inkstand. Water-closetsupply box for slate cistern. Waste, union screw, anddrawing-off tap for slate cistern. Samples of variousnails and screws used in slate work. Half of roof coveredwith Delabole slab slates. Specimen of Bangor slabslating.
Specimens of roofs covered with imperial slates fromthe Bangor quarries ; rag slates from the old Delabolequarry ; rag slates and green rag slates from Llanberisquarry; red duchess slates with three green slate dia-monds ; slates from Festiniog quarries, as cut by Mathews’patent cutting machine ; open space new quarry duchessslates from Llanberis quarry ; imperial slates from Aber-dovey quarries, near Machynlleth .
Slate bed-room and dining-room chimney-pieces, fromold Delabole quarries—in imitation of marble.
Carved head-stone ; cut clock face.
[The collection of slates referred to in the abovedescription is calculated to give an idea of the bestqualities introduced into the London market, with thekind of use to which most of them are applied. Thechief localities are Cornwall (Delabole), Wales (Fes-tiniog, Penrhyn, Llanberis, &c.), Lancashire , and West-moreland. The Delabole is especially adapted for churchand other roofs, and has been much used for this pur-pose.
The slates, lettered A, are from the great quarries atPenrhyn, and shipped at Bangor . These quarries have asmany as 10 levels, and employ upwards of 2,000 persons.Those marked B, are from Llanberis ; C, from the DorotheaSlate Company’s quarries, near Carnarvon; D, E, fromquarries at Festiniog, shipped at Port Madoc; F, G, fromnear Machynlleth, North Wales , shipped at Aberdovey;H, from Delabole, Cornwall , shipped at Padstow; I, K,L, M, from near Ulverstone, in Lancashire , includingsome of the Westmoreland quarries, and shipped atUlverstone.
The present consumption of slate in London is to theextent of from 30,000 to 40,000 tons per annum. Onethird of this quantity is in slabs, and the rest in roofing-slates, -which are in nine sizes, called respectively “ladies,”“ countesses” (3sizes), “ duchesses ” (2 sizes), “queens,”“rags,” and “imperials.” From “ladies” (16 inchesby 8) to “duchesses” (24 by 12), the slates are soldper thousand (of 1,200 slates), but above that size by theton. The “ladies ” weigh 25 cwts. the 1,200 slates, andthe “duchesses” 3 tons. The regular-sized slabs varyfrom 1 to 6 feet in length, and 1 to 3 feet in breadth. Alarge quantity of slate slabs is now used for ornamentalpurposes.—D. T. A.]
210 Greaves, John W., Port Madoc , Carnarvon,
Slabs and slates from the quarry at Festiniog, withtools used in manufacturing the same. Blue lias lime.
[Slate is extensively used in slabs for water cisternsand for covering roofs of slight inclination. For boththese purposes it is jointed, and the joints are made witha cement, aided, as roof covering, by tongues in the jointsand by covering fillets. But the most extensive employ-ment of slate is for roof covering, in the form knownfamiliarly as slates. Slates are rent and dressed to sizes,and laid to lap and bond. Jointed slating is apt to fail
[Official Illustrated Catalogue.]
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