Coal is formed by the pressure of the earth's surface on decayed vegetable matter. There is little doubt that the coalfields of to-day was once the site of forest land many years ago, probably near the mouth of a. river. During the course of centuries, this forest land has gradually subsided and been covered up by the silt brought down by the river. The decayed vege: table matter, having had oxygen expelled from it, has been changed by physical process and by the compression of the earth's surf carbon. There isa able amount of anthracite coal China, but it is not mined to any rear extent. "Most of that used in Shanghai comes from the Hongay Mines in French Indo-China.
in China. "In 1920, Mr. V. K. Ting, 'There is a vast quantity of coal Director' of the Geological Survey of China, stated that China would be able to keep the world supplied with,000,000,000" ons year for' a " period of 1,000 years. In. spite Of this remarkable sta ment, however, until recent Years hind used te Tiypart wore ea! than his is due to. the exception
Text read from the printed page and cleaned; old type leaves the occasional error.