Sponge Spicules in Swamp Soils
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distinguished from the siliceous remains of certain elongated diatoms by the lack of the elaborate sculpturing generally present in the latter. These are the remains of fresh-water sponges and may vary in size and shape. The most common in the Georgia soil is the Mayenia millsii, which is crescent shaped, with tiny spines project- ing from the body of the spicules. The presence of these spicules in large quantities in the soil causes the irritation described. The character of the spicules is sh...own in figure 1.
Mayenia millsii is described by Edward Potts 3 as follows : Skeleton spicules nearly straight, cylindrical, slender, rather abruptly pointed, entirely microspined. Spines few, low, conical. Measurement of skeleton spicules 0. 0107 by 0. 0005 inch. Collected from Sherwood Lake, near De Land, Fla.
All the forms of fresh-water sponges as yet discovered are siliceous. The skeleton or framework (corresponding to the elastic fiber of which commercial sponges are com- posed), upon which slimelike sponge flesh, known as "sarcode, " is supported, and i Mr.
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To quickly assess the difficulty of the text, read a short excerpt:
distinguished from the siliceous remains of certain elongated diatoms by the lack of the elaborate sculpturing generally present in the latter. These are the remains of fresh-water sponges and may vary in size and shape. The most common in the Georgia soil is the Mayenia millsii, which is crescent shaped, with tiny spines project- ing from the body of the spicules. The presence of these spicules in large quantities in the soil causes the irritation described. The character of the spicules is sh...own in figure 1.
Mayenia millsii is described by Edward Potts 3 as follows : Skeleton spicules nearly straight, cylindrical, slender, rather abruptly pointed, entirely microspined. Spines few, low, conical. Measurement of skeleton spicules 0. 0107 by 0. 0005 inch. Collected from Sherwood Lake, near De Land, Fla.
All the forms of fresh-water sponges as yet discovered are siliceous. The skeleton or framework (corresponding to the elastic fiber of which commercial sponges are com- posed), upon which slimelike sponge flesh, known as "sarcode, " is supported, and i Mr.
What to read after Sponge Spicules in Swamp Soils?
You can find similar books in the "Read Also" column, or choose other free books by Royall O E Davis to read onlineMoreLess
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