Publisher's Synopsis
Excerpt from Structure in Paleozoic Bituminous Coals
Views and conceptions of the origin, composition, and general na ture of coal differ so widely that to determine the real extent of actual knowledge is no easy matter. The chemist finds difficulty in attacking the chemical problems and the engineer lacks a broad chemical basis for the study of his problems. Thus the economical and efficient utilization of coal in the industries suffers froma lack of knowledge of the composition of coal itself.
Most scientists interested in this matter, as has been brought out in discussions during the recent investigation of coal problems, appear to have only a vague idea of the components of coal and their origin. Some are even in doubt as to whether substances derived from the wood and resins of plants form a part of coal; and few seem to have more than' the dimmest idea of what are the components of coal, the condition in which these now exist, and the transformations that they have undergone.
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