Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
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الصفحة 27
... , Oct. 21 , 1819 . + The specimen , as I learn from Mr. Lowry was brought from Utöe in Sweden , and was attached to a mass of oxidulous Iron . On this I set the edge of a knife , D 2 developed by Polarized Light . 27.
... , Oct. 21 , 1819 . + The specimen , as I learn from Mr. Lowry was brought from Utöe in Sweden , and was attached to a mass of oxidulous Iron . On this I set the edge of a knife , D 2 developed by Polarized Light . 27.
الصفحة 101
... masses derived from the ruins of some other rock . A more minute examination proves them to have been contemporaneous with the rock in ... mass has been deposited in beds , in one 101 Professor SEDGWICK on the Geology of Cornwall , & c .
... masses derived from the ruins of some other rock . A more minute examination proves them to have been contemporaneous with the rock in ... mass has been deposited in beds , in one 101 Professor SEDGWICK on the Geology of Cornwall , & c .
الصفحة 102
... mass by nearly parallel fissures , is considered as indicating the first stage of decomposition . By the action of the atmosphere , the fissures become enlarged ; the solid angles at the points of separation gradually disappear ; the ...
... mass by nearly parallel fissures , is considered as indicating the first stage of decomposition . By the action of the atmosphere , the fissures become enlarged ; the solid angles at the points of separation gradually disappear ; the ...
الصفحة 103
... mass . He even ventures to point out the primitive form of these crystals of granite . The prismatic forms are not now considered as crystals , but as forms resulting from the original crystalline arrangement of the whole mass about ...
... mass . He even ventures to point out the primitive form of these crystals of granite . The prismatic forms are not now considered as crystals , but as forms resulting from the original crystalline arrangement of the whole mass about ...
الصفحة 104
... mass . An imperfect instance of what is here meant , may be seen in a cave near St. Levan . The most instructive example of this decom- position may be examined in detail on St. Stephen's Moor . For some reason , connected probably with ...
... mass . An imperfect instance of what is here meant , may be seen in a cave near St. Levan . The most instructive example of this decom- position may be examined in detail on St. Stephen's Moor . For some reason , connected probably with ...
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ABCD acid angle Apophyllite appearance axis ball beds carbonate of lime centre character chlorite schist clay slate cliffs coast colour compact composed considerable Cornwall Cove crystalline crystals cube cylinder decomposing decomposition described deviation direction distance district dyke earthy East equation examination exhibited Fellow felspar fissures formation fracture fragments function Galvanic gazometer granite granite veins granular green green-stone greywacké Helford river horizontal hornblende hydrogen inches instance intermixed irregular killas laminæ limestone Llanbabo Llaneilian Llanerchymedd Llanfaelog Llangefni Llanrhyddlad magnetic mass mica mineral muriate Nare point nature nearly needle North observed occur old red sandstone parallel particles passing perpendicular phenomena piston plane plate polarization porphyritic portion present pyroxene quartz quartz rock resembling Rhoscolyn schistose schorl serpentine side slaty South specimens steatite strata structure substance surface texture trace Trin ureters variety vertical whole wire