s estimated to be about 146,454 million
tons. To this we may one day have to add the coal under the south-eastern
part of England.

Amount of coal in millions of
tons to depths not exceeding
Coal Fields of-- 4,000 feet.

South Wales 32,456
Forest of Dean 265
Bristol 4,219
Warwickshire 459
S. Staffordshire, Shropshire, Forest of Wyre and Clee Hills 1,906
Leicestershire 837
North Wales 2,005
Anglesey 5
N. Staffordshire 3,825
Lancashire and Cheshire 5,546
Yorkshire, Derbyshire, and Northumberland 18,172
Black Burton 71
Northumberland and Durham 10,037
Cumberland 405
Scotland 9,844
Ireland 156

It is important to bear in mind, that out of the 170 million tons of coal
now being raised annually we only use a small proportion, viz. from 5 to
6 per cent. for gas-making. The largest amount (33 per cent.) is used for
iron-smelting,[3] and about 15 per cent. is exported; the remainder is
consumed in factories, dwelling-houses, for locomotion, and in the smaller
industries.

The enormous advancement which has taken place of late years in the
industrial applications of electricity has given rise to the belief that
coal-gas will in time become superseded as an illuminating agent, and that
the supply of tar may in consequence fall off. So far, however, the
introduction of electric-lighting has had no appreciable effect upon the
consumption of gas, and even when the time of general electric-lighting
arrives there will arise as a consequence an increased demand for gas as a
fuel in gas engines. Moreover, the use of gas for heating and cooking
purposes is likely to g