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EXPOSITION AT VIENNA.
China Clay — England.
The following tabular statement shows the extent of the production of China stone and China clay in Cornwall, for a series of years* :—
Shipments of China Clay and China Stone from Cornwall , England.
YEAR.
Kaolin (China Clay).
China Stone.
St. Agnes Clay.
1865 , .....
97,750
25,500
1,566
1866 , .
105,000
35,000
1,524
1 - 867 ,.
127,000
33,500
1,316
1868 , .
100,000
29,000
979
1869 , .
105,700
28,500
875
1870 , .
110,520
32,500
946
1871 ,.
125,000
33,000
774
At St. Agnes there were also, in 1871, about four hundred tons produced for candle-clay, used in the mines for supporting the candles.
In Devonshire, 19,000 tons were produced, in 1871, at the Lee Moor, and other china-works, and 47,639 tons of pipe and potter’s clay were shipped at Teignmouth, the production of Newton and neighborhood. Of a total of 57,670 tons exported from Poole, Devonshire, in 1871, the greater portion was sent to London and Runcorn, and to Quebec 200 tons.
Of potter’s material (clay, flint, chert, etc.) there were imported into the potteries by Trent and Mersey navigation, 144,588 tons, and by the North Staffordshire Railway, clay, flint, chert, etc., 11,345 tons.
The demand for porcelain clays sustains a very considerable mining industry in Cornwall and Devonshire. The official mineral statistics of the United Kingdom contain a list of no less than one hundred and five separate clay- works in Cornwall, seven in Devonshire for porcelain clay, five of "Teignmouth clay,” and six of "Poole clay.” In Staffordshire there are nineteen works producing Stour-
* Compiled from Hunt’s Mineral Statistics of Great Britain.