44 
In ascertaining the quantity of coal yet unworked, 
Mr. Rowland Childe, Mining Engineer, of Wakefield, has 
favoured me with the following calculation. He has taken out 
of the twenty- two beds of coal, found in boring through the 
coal measures to the Millstone Grit, on the top of which they 
rest, the most important beds, sixteen in number, to a depth 
of 600 yards. But with respect to the six thinner seams, 
he has confined the depth to a distance from 200 to 400 
yards from the surface, according to the quality and thick- 
ness of the coal. 
For the purpose of this calculation, he has assumed this 
coal field to extend from the outcrop of the Halifax beds — 
the lowest series of beds in the coal measures— on the Horth, 
to the river Hon, near Rotherham, on the South ; and from 
near the outcrop of the Magnesian Limestone on the East, 
to the outcrop of the Halifax beds on the West, comprising 
an area of 550 square miles. Dividing this area into two 
divisions, he estimates the un worked coal on the Horth side 
of the Lancashire and Yorkshire Railway to be 1,817,310,620 
tons, as on the sixteen following beds : — 
Name of Bed of CoaL 
Shale Coal 
Stanley Main or Beamshaw . 
Barnsley Bed or Gawthorpe . 
Swallow Wood or Haigh Moor .. 
Joan or Mitchell Coal 
Flockton Thick, or 40 yards Coal 
Park Gate or Brown Metal 
Little or Green Lane Coal 
Middleton Main , 
Wheatley Bed 
Blocking Coal 
Beeston, or Shirtcliffe 
Low Moor Black Bed 
Low Moor Better Bed 
Halifax Hard Coal 
Halifax Soft Coal 
Thickness. Quality of Coal. * 
ft. ins. 
2 0 First Class House Coal. 
6 0 House and Smelting Coal. 
3 6 House and Engine Coal. 
4 6 Excellent House Coal. 
2 8 House and Steam Coal. 
2 0 House and Engine Coal. 
4 0 Ditto ditto. 
2 6 Steam and Smelting Coal. 
4 3 House, Gas and Engine CoaL 
3 0 Engine and Lime Coal. 
1 10 House Coal. 
3 10 House and Engine CoaL 
1 10 Ditto ditto, 
2 4 Best Smelting CoaL 
2 3 House and Engine CoaL 
1 6 Ditto ditto. 
And the unworked coal south of the Lancashire and 
