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