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Although the present coal-fields of England are divided from one another by patches of other beds, it is probable that some of them were formerly connected with others, and a very wide sheet of coal on each occasion was laid down.
To this end we require improved methods for producing excessively frequent alternations and enormous potentials. Shall we be able to obtain these by tapping the ether? If so, we may view the prospective exhaustion of our coal-fields with indifference; we shall at once solve the smoke question, and thus dissolve all possible coal rings.
All doubt was, however, finally dispelled by the discovery by Mr Binney, of a sigillaria and a stigmaria in actual connection with each other, in the Lancashire coal-field. Stigmariae have since been found in the Cape Breton coal-field, attached to Lepidodendra, about which we have already spoken, and a similar discovery has since been made in the British coal-fields.
Amongst the actual coal-fields, that of Pennsylvania stands pre-eminent. The anthracite here is in inexhaustible quantity, its output exceeding that of the ordinary bituminous coal. The great field of which this is a portion, extends in an unbroken length for 875 miles N.E. and S.W., and includes the basins of Ohio, Maryland, Virginia, Kentucky, and Tennessee.
Portion of a section, showing the large sporangia in their natural position, and each supported by its bract or scale. c. Spores in these sporangia, highly magnified. In the Carboniferous strata of Coalbrook Dale, and in many other coal-fields, elongated cylindrical bodies, called fossil cones, named Lepidostrobus by M. Adolphe Brongniart, are met with.
It is obvious that if this sand or mud be afterwards consolidated and turned to sandstone and hard shale, it would be the least destructible. Erect fossil trees. In regard to the plants, they belonged to the same genera, and most of them to the same species, as those met with in the distant coal-fields of Europe. Dr.
The company thus brought together manufactured 85 per cent of all the farm machinery used in this country. It owned its own coal-fields and iron mines and its own forests, and it produces most of the implements used by 10,000,000 farmers.
Newman paced up and down this quiet promenade for the greater part of the next day and let his eyes wander over the historic prospect; but he would have been sadly at a loss to tell you afterwards whether the latter was made up of coal-fields or of vineyards. He was wholly given up to his grievance, or which reflection by no means diminished the weight.
They had been discussing the "coal-fields", and were looking up at the mountain which they had just descended. "There's plenty there to supply the country for the next ten years. I wasn't thinking of the supply when I spoke, but of the possibility of not being able to get it out. You remember how the hard-coal region was tied up for eight months or more." "There's little danger here.
Williams of the Geological Survey, who was about to move his camp from the Damooda valley coal-fields, near Burdwan, to Beejaghur on the banks of the Soane, where coal was reported to exist, in the immediate vicinity of water-carriage, the great desideratum of the Burdwan fields. My time was spent partly at Government-House, and partly at Sir Lawrence Peel's residence.
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