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 52

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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 52

[page]51.[/page]
For manner of growth see plate XIII.

[underlined][underlined][underlined]TABULATA.[/underlined][/underlined][/underlined]
     Coralla composed of many cylindrical or prismatic corallites with thick, independent, compact, walls which are either compact or perforated by mural pores. Septa absent, rudimentary, or but slightly developed; sometimes appearing as rows of spines. Visceral chamber containing tabulae.

[underlined][underlined]Favositidae[/underlined][/underlined]
[underlined]Michelina Eugenea[/underlined], White, 1883, Geol. and Nat. Hist. of Indiana, 13th Report.
Plate IV. figure 7.
     Corallum discoidal or hemispherical, varying in size. Corallites irregular in size and shape; calyces moderately deep, polygonal, with thin walls and sharp margins. Calyces

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[page]51.[/page] For manner of growth see plate XIII. [underlined][underlined][underlined]TABULATA.[/underlined][/underlined][/underlined] Coralla composed of many cylindrical or prismatic corallites with thick, independent, compact, walls which are either compact or perforated by mural pores. Septa absent, rudimentary, or but slightly developed; sometimes appearing as rows of spines. Visceral chamber containing tabulae. [underlined][underlined]Favositidae[/underlined][/underlined] [underlined]Michelina Eugenea[/underlined], White, 1883, Geol. and Nat. Hist. of Indiana, 13th Report. Plate IV. figure 7. Corallum discoidal or hemispherical, varying in size. Corallites irregular in size and shape; calyces moderately deep, polygonal, with thin walls and sharp margins. Calyces