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 70

Transcribe
Translate

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 70

[page]69.[/page]

[underlined][underlined][underlined][underlined]BRACHIOPODA.[/underlined][/underlined][/underlined][/underlined]

     Molluscoidea with two, unequal, equilateral valves. Animal attached during part or all of its life by means of a pedicle at the posterior part of the body; or cemented ventrally. Valves ventral and dorsal. In composition the shells may be made up up [?] of calcium carbonate or phosphate or a mixture of the two. The shell is lined by an expansion of the integument called the mantle, which secretes the shell. Within the visceral chamber, attached to the dorsal valve, on either side of the mouth are two, rather long cirrated, spirally coiled brachia. In some genera these are attached to a calcareous base, while in other the calcareous support extends theroughout the brachia.

Saving...

[page]69.[/page] [underlined][underlined][underlined][underlined]BRACHIOPODA.[/underlined][/underlined][/underlined][/underlined] Molluscoidea with two, unequal, equilateral valves. Animal attached during part or all of its life by means of a pedicle at the posterior part of the body; or cemented ventrally. Valves ventral and dorsal. In composition the shells may be made up up [?] of calcium carbonate or phosphate or a mixture of the two. The shell is lined by an expansion of the integument called the mantle, which secretes the shell. Within the visceral chamber, attached to the dorsal valve, on either side of the mouth are two, rather long cirrated, spirally coiled brachia. In some genera these are attached to a calcareous base, while in other the calcareous support extends theroughout the brachia.