Publisher's Synopsis
Excerpt from I. Potash Shales of Illinois; II. Geology, Distribution, and Occurrence in Union County; III. Finely-Ground Shale as a Source of Potassium or Soil Improvement: A Joint Publication by the Division of Applied Chemistry of the University of Illinois; The Illinois Geological Survey; The Illinois Geological Survey; And the Agricultural Experiment Station
During the years 1916 and 1917 certain Illinois shales were being studied in the laboratory of applied chemistry at the University of Illinois, with primary reference to the amount of oil they would produce upon destructive distillation.
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