Coal Mining

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Excerpt from Coal Mining: Described and IllustratedThe Almighty in His great bounty has provided for all our wants in endless abundance and variety. In some parts of the Tropics, when the rainy seasons come to moisten the ground which has been baked by the heat of the sun, you can see the vegetation thrust out of it by a powerful in¿uence. The transformation which takes place is truly magical. Within a few weeks, the ground that was bare supports masses of vegetable matter so high and so rank as to forbid one's passage through them. Year succeeds year and each contributes its layer of vegetation, which is generously supplied with carbon, oxygen, hydrogen, nitrogen, and traces of other important ingredients which combine to form those wonderful products of nature.But, alas! After the rains cease to moisten the earth, the sun shines hotly through the thirsty atmosphere and abstracts the moisture from the vegetation which has been so generously nourished by it. In a short time only a portion of the whole remains, the bulk of the ingredients passes back into the winds again, and is carried by them to other parts of the globe perhaps to make component parts in the construction of other vegetable or animal organisms.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.