 ... short side pointing downwards : they are so fragile, that they can rarely be taken entire from the matrix. Upon this stratum of clay, in a matrix of sand, lies a bed of the Ostrea virginica, in some places a foot in thickness.  Report of the Annual Meeting - Pagina 34door British Association for the Advancement of Science - 1835Volledige weergave - Over dit boek
 | Academy of Natural Sciences of Philadelphia - 1827 - 394 pagina’s
...nearly vertical veins, as though they had fallen into fissures. The Pkolas costata is also numerous, and each individual remains in the position in which...buried in the sand or mud ; that is, vertical, with the posterior or short side pointing downwards; chey are so fragile, that they can rarely be taken entire... | |
 | Academy of Natural Sciences of Philadelphia - 1829 - 426 pagina’s
...which the living shell is usually buried in the sand or mud ; that is, vertical, with the posterior or short side pointing downwards; they are so fragile,...places a foot in thickness. It is nearly horizontal ; hi some places at least eight or ten, and in others not more than four feet above high water mark.... | |
 | British Association for the Advancement of Science - 1835 - 806 pagina’s
...nearly vertical veins, as though they had fallen into fissures. The Pholas costata is also numerous, and each individual remains in the position in which...stratum of clay, in a matrix of sand, lies a bed of the Oxtrea virgimca, in some places a foot in thickness. It is nearly horizontal ; in some places at least... | |
 | Hugh Murray - 1839 - 646 pagina’s
...nearly vertical veins, as though they had fallen into fissures. The Pholas cosíala is also numerous, and each individual remains in the position in which...stratum of clay, in a matrix of sand, lies a bed of the Oslrfa virginica, in some places a foot in thickness. It is nearly horizontal ; in some places nt least... | |
 | National Institute for the Promotion of Science - 1840 - 622 pagina’s
...vertical veins, having oviilcntly fallen into fissures in the clay. Pholas costata is also abundant, and each individual remains in the position in which the living shell is usually buried in the mud, that is, vertical, with the anterior or short side pointing downward. They arc very fragile and... | |
 | National Institute for the Promotion of Science - 1841 - 600 pagina’s
...vertical veins, having evidently fallen into fissures in the clay. Pholas costata is also abundant, and each individual remains in the position in which the living shell is usually buried in the mud, that is, vertical, with the anterior or short side pointing downward. They are very fragile and... | |
 | 1927 - 460 pagina’s
...vertical veins, having evidently fallen into fissures in the clay. Pholas costata is also abundant, and each individual remains in the position in which the living shell is usually buried in the mud — that is, vertical, with the anterior or short side pointing downward. They are very fragile... | |
 | Michigan Academy of Science, Arts, and Letters, Michigan Academy of Science. Council - 1921 - 254 pagina’s
...which the living shell is usually buried in the sand or mud; that is, vertical, with the posterior or short side pointing downwards; they are so fragile,...stratum of clay, In a matrix of sand, lies a bed of the Ostrca virginiana, in some places a foot in thickness. It is nearly horizontal; in some places a~t... | |
 | Michigan Academy of Science, Arts, and Letters, Michigan Academy of Science. Council - 1921 - 264 pagina’s
...nearly vertical veins as though they had fallen into fissures. The (Barnea) costata is also numerous, and each individual remains in the position In which...buried in the sand or mud; that is, vertical, with the posterior or short side pointing downwards; they are so fragile, that they can rarely be taken entire... | |
 | National Institute for the Promotion of Science, Washington, D.C. - 1842 - 440 pagina’s
...vertical veins, having evidently fallen into fissures in the clay. Pholas costata is also abundant, and each individual remains in the position in which the living shell is usually buried in the mud, that is, vertical, with the anterior or short side pointing downward. They are very fragile and... | |
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