Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
من داخل الكتاب
النتائج 1-5 من 49
الصفحة 17
... strata , as well as of the earth above them to represent their various disruptions , to shew the situation , and extent of fissures , and metallic veins , to mark the boundaries where the upper strata have been swallowed up , or cease ...
... strata , as well as of the earth above them to represent their various disruptions , to shew the situation , and extent of fissures , and metallic veins , to mark the boundaries where the upper strata have been swallowed up , or cease ...
الصفحة 18
... strata , in which they run . For if the artist knows what is beneath the surface , he has no difficulty in representing it as trans- parent . He must be careful however not to perplex himself by lines too much multiplied , and take ...
... strata , in which they run . For if the artist knows what is beneath the surface , he has no difficulty in representing it as trans- parent . He must be careful however not to perplex himself by lines too much multiplied , and take ...
الصفحة 90
... the coal strata in the neighbonrhood of Bristol . In the Geological Transactions , vol . III . p . 342 , & c . vallies of the eastern parts of Devonshire they occupy a 90 Professor SEDGWICK on the Geology of Cornwall , & c .
... the coal strata in the neighbonrhood of Bristol . In the Geological Transactions , vol . III . p . 342 , & c . vallies of the eastern parts of Devonshire they occupy a 90 Professor SEDGWICK on the Geology of Cornwall , & c .
الصفحة 92
... strata do not preserve the same direction for many feet together ; but are continually deflected , and coiled on each other ; presenting in their course lines of every possible curvature . The same vertical section often exposes a ...
... strata do not preserve the same direction for many feet together ; but are continually deflected , and coiled on each other ; presenting in their course lines of every possible curvature . The same vertical section often exposes a ...
الصفحة 97
... strata prevail nearly throughout the whole coast of Cornwall ; for there are com- paratively few places where the cliffs exhibit such a shelving descent to the water's edge as to become the support of vegetation . Before I enter on the ...
... strata prevail nearly throughout the whole coast of Cornwall ; for there are com- paratively few places where the cliffs exhibit such a shelving descent to the water's edge as to become the support of vegetation . Before I enter on the ...
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
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