MINING AND METALS
67
Non-metallic Minerals
Tons
Value at
Mines and
Quarrie.) ■
Value at Mines and Quarries.
Coal
Clay and Shale
Sandstone
Slate
Limestone
Salt
Oil shale,
IgTieous rocks.
Chalk .
Gravel, sand .
Gypsum .
271,891,899
13,835,038
4,044,907
425,125
12,183,355
2,082,688
3,llli,803
G,524,(J9()
4,884,020
2,275,177
270, 0S4
£
110,783,082
1,758,400
1,194,420
1,050,607
l,268,^53
001,324
857,120
1,241,907
199,573
172,214
104,221
Arsenic and ars.
pyrites . Barium (^Compounds) Ochre, Umber, (fee. . Fluor Spar Mica .... Others
Total non-n)e(al!ic
Total minerals (191
„ (191
£
15,703 40,380 13,732 18.941 8,748 18,534
119,348,551 124,579,313 122,105,582
There was an increase on 1910 of 2,A7o,7Sll. in the value of the minerals produced, and a decrease of 656,462Z. in the value of the metals })roduced from the minerals. Of the total mineral produce in 1911, the value of 83,805,238i5. was raised in England, 24,333,425^. in Wales, 16,187,383^. in Scotland, 222,006Z. in Ireland, and 31,26U. in the Isle of Man.
The total number of persons employed at all mines under the Coal and Metalliferous Mines Regulation Acts in 1911 was 1,096,238. The number of mines at work was 3,977. 881,002 persons (males) worked underground, and 208,776 males and 6,460 females above ground. The number employed at quarries under the Quarries Act was 82, 863 (excluding persons occasionally emplo3^ed), of whom 52,053 (including 3 females) worked inside the quarries, ami 30,810 (including 36 females) outside.
Coal raised in the United Kingdom, and coal, coke, and patent fuel ex- ported : —
Coal raised
Coal. Coke, etc., exported
Year
1 Tons
Value
Tons
Value
£
£
1900
225,181,300
121,652,596
46,098,228
38,619,850
1905
236,128,936
82,038,553
49,359,272
26,001,1201
1909
203,774,312
100,274,888
05,094,207
.37,129,978
1910
264,433,028
lOS, 377,507
64,520,320
37,813,300
1911
271,891,899
110,783,082
07,271,883
38,447,354
1 Including the net amount of the export duties levied : 2,103,655/. in 1905. Coal production of the various districts, 1911 : —
District
Tons of Coal
District
Tons of Coal
England : —
England (contd.) : —
Durham
41,718,916
Other districts
14,387,589
Yorksliire
39,137,115
Wales : —
Lancashire
23,674,817
Glamorgan .
33,463,974
Staffordshire .
14.049,512
Other districts
6,381,084
Derbyshire .
17,171,451
Scotland : —
Northumberland .
14,682,717
Lanarkshire
17,504,906
Monmouthshire
13,798,747
Other districts
24,213,257
Nottinghamshire .
11,623,250
Ireland .
84,564
Total, United Kingdom
171,891,899
F 2
