Annual Report - Geological And Natural History Survey of Minnesota
Annual Report - Geological And Natural History Survey of Minnesota
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In our eReader you can find the full English version of the book. Read Annual Report - Geological And Natural History Survey of Minnesota Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Annual Report - Geological And Natural History Survey of Minnesota
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m. in diameter, one smooth, the ' other tuberculated; both tubular, and probably belonging to some sponge. Lastly, a single specimen of a very curious body, of straggling and irregular form, composed of numerous expan- sions differing in shape and size and pretty uniformly pitted, but connected by narrow, smooth necks. As this is in one of the preparations which has been treated with acid, it must be sili- ceous. I can only suggest that it may be the siliceous cast of some foraminifer like Aach...emoneUa catenata of Norman, the arenaceous test of which has been composed of calcareous particles which have left pitted impressions on the cast. Against this is the fact of its small size, it being about .2 m. m. only in greatest dia- meter.
Boulder-clay from Crete, Saline county , Nebraska.
This material,Mr.Thomasinforms me, was obtained from asingle small excavation. It was forwarded to Mr. Thomas by Prof. G. D.
Swezey, and is described by him in a letter to Mr. Thomas as a blue clay underlying the loess.
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You can find similar books in the "Read Also" column, or choose other free books by Geological And Natural History Survey of Minnesota to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
m. in diameter, one smooth, the ' other tuberculated; both tubular, and probably belonging to some sponge. Lastly, a single specimen of a very curious body, of straggling and irregular form, composed of numerous expan- sions differing in shape and size and pretty uniformly pitted, but connected by narrow, smooth necks. As this is in one of the preparations which has been treated with acid, it must be sili- ceous. I can only suggest that it may be the siliceous cast of some foraminifer like Aach...emoneUa catenata of Norman, the arenaceous test of which has been composed of calcareous particles which have left pitted impressions on the cast. Against this is the fact of its small size, it being about .2 m. m. only in greatest dia- meter.
Boulder-clay from Crete, Saline county , Nebraska.
This material,Mr.Thomasinforms me, was obtained from asingle small excavation. It was forwarded to Mr. Thomas by Prof. G. D.
Swezey, and is described by him in a letter to Mr. Thomas as a blue clay underlying the loess.
What to read after Annual Report - Geological And Natural History Survey of Minnesota?
You can find similar books in the "Read Also" column, or choose other free books by Geological And Natural History Survey of Minnesota to read onlineMoreLess
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