Excerpt from Production and Consumption of Mineral Fuels in Illinois, 1933-1964 Although different types of energy sources have been used to provide this total consumption, coal was the most important until,1952 Coal consumption rose to a peak in the 1920' s and then gradually declined. The new and increased uses and the substitution of petroleum products for other fuels had much to do with the relative decline in the importance of coal. In 1900, the national use of petroleum products was hardly significant, but since then their use has grown steadily and strongly. Today, petroleum products and natural gas each account for more energy than does coal. The importance of natural gas as a marketed product parallels the development of pipelines since World War II. In 1965, natural gas accounted for percent, crude petroleum percent, and coal percent of the energy used in the mineral fuels market. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.

Excerpt from Illinois Mineral Industry in 1933: A Preliminary Statistical Summary and Economic Review The quantity and value of mineral output in Illinois in 19 32 and 1933 is shown in Table 1. The production of minerals and the manufacturing industries based upon mineral commodities occupies an important position in the indus trial position of the State. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.