66

COAL.

COALS.

Volatile Matter. Coke.

Dean’s Primrose

29-25

7075

Apedale (Staffordie)

400

600

Garesfield (Bute’s) .

28-3

71-7

Garesfield (Cowaiu’s)

29-4

70-6

West Hartley-

35-8

64-2

South Peareth

00

72-2

Pelaw Main

30-3

69-7

Pelton Main .

28-4

71-6

New Pelton

30-2

69-8

Ruabon ....

41'5

58"5

Washington

31-25

68 - 75

Silkstone

35-2

64-8

Stavely ....

40-9

591

Leversou’s Wallsend

34-9

651

FOREIGN COALS.

Denain (France)

29-90

70-10

Dour (Belgium)

23-30

71-50

Liege (ditto) .

23-40

69-90

Grand Gaillet (ditto)

38-50

58-50

Gade Vein (ditto)

44-00

51-00

Waldenburg (Silesia)

36-40

57-20

Elk River (Virginia, N.A.)

39-90

55-90

Keller’s Creek (ditto)

37-08

60-92

Jackson (Ohio)

44-80

3995

Franklin (Pennsylvania) .

52-78

29-54

Orangeville (ditto) .

43-75

53-45

Rock River (Illinois)

44-50

45-50

Osage River (Missouri) .

43-50

5116

Mammoth Vein, 24 feet (ditto)

34-20

50-78

Araucc (Chili, S.A.)

3000

67-62

Picton (Nova Scotia)

29-63

56-98

Ash.

24

0'75

3-2

0-95

47

1-8

26

1-41

175

1-0

2-7

4-9

6-00

5-200*703005*006*405*202*0014*6217-682-8010005-3415 022-3813-39

An excellent practical exemplification of the relative values of different kinds of Englishcoal was afforded by the returns from the Gas Companies established by Act of Parliamentin England and Wales, made in accordance with an order of the House of Commons,in 1856, setting forth the kind of coal used, the average number of cubic feet of gasproduced from each ton, and the illuminating power. In the subjoined extract fromthese returns, those Companies are omitted that did not give specific information on thepoints required. It may be desirable to mention, also, that in many instances the standardof illuminating power has since been considerably raised, but as regards the results ob-tained from the distillation of different kinds of coal, they are generally applicable at thepresent time.