Excerpt from The Silurian, Devonian and Irvine Formations of East-Central Kentucky: With an Account of Their Clays and Limestone
Sir: I have the honor to herewith transmit for publication a bulletin, prepared by Professor Aug. F. Foerste, on the Silurian, Devonian and Irvine Formations of East-Central Kentucky, with an account of their clays, limestones, mineral waters and water horizons.
The report is divided into three parts. Part I deals with the classifications of the several formations, and with the geographic distribution of their subdivisions, in accordance with the better knowledge of them that has been acquired since the earlier work of William M. Linney (deceased). The great excellence of the pioneer work of Mr. Linney on the Kentucky Silurian (then known as Upper Silurian) is heartily conceded by all who are acquainted with the subject; but the urgent necessity for a classification which will accord with more recent knowledge and present terminology is well recognized by all geologists who have worked or who expect to work in Kentucky regions where Silurian or Devonian rocks form the substructure of the ground. The usefulness of a correct classification of our rocks - the bearing it has upon the study of the economic geology of the State - has been discussed in my Report of Progress for 1904-05. The numerous sections and page maps, showing the distribution of various members of the formations, will prove of much value in connection with the preparation of the soil map of the State. Professor Foerste has taken pains to give full lists of fossils which characterize the more important beds, thus rendering his report of especial service to local investigators.
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