DIY History | Transcribe | Scholarship at Iowa | Coal Measures and Coal Mining in Iowa, including paleontology and a discussion on the coal formation; also the methods of mining by Russell T. Hartman, 1898 | Coal Measures and Coal Mining in Iowa by Russell T. Hartman, 1898, Page 50

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Coal Measures and Coal Mining in Iowa, including paleontology and a discussion on the coal formation; also the methods of mining by Russell T. Hartman, 1898

Coal Measures and Coal Mining in Iowa by Russell T. Hartman, 1898, Page 50

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[page]49[/page] with principal septa at outside wall. Diaphragms occupying one half to two thirds of the entire width, complex, forming vesicular-like compartments. Dissepiments thin forming smal, irregular vescicles. Epitheca thin with small encircling wrinkles and strong undulations of growth . Septal striae cannot be seen except when the epitheca has been removed. Geol. position,-- Missouri stage of Coal Measures. Localities,-- Pottawatamie Co., Iowa; Kansas City and Independence, Missouri. Reference,-- Final Rept. U. S. Geol. Sur. of Nebraska, page 145. [underlined]Axophyllum rude[/underlined], Plate IV. fig 3. White and St. John, 1867, Chicago.