Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
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الصفحة 26
... character of these rings was however altogether different from that of the rings exhibited in the ordinary variety , their tints , instead of being alternately white and black , with a little intermediate shading of lilac and greenish ...
... character of these rings was however altogether different from that of the rings exhibited in the ordinary variety , their tints , instead of being alternately white and black , with a little intermediate shading of lilac and greenish ...
الصفحة 28
... characters . Those in the thicker portion were in every respect precisely analogous in the scale of their tints , to those of that variety with one axis , which seems to form the central portion and upper lamina of Dr. Brewster's ...
... characters . Those in the thicker portion were in every respect precisely analogous in the scale of their tints , to those of that variety with one axis , which seems to form the central portion and upper lamina of Dr. Brewster's ...
الصفحة 32
... characters of their tints . In the thicker plate , by a mean of 20 careful observations made by the interposition of a certain standard red glass , on the ring of the third order at its minimum ( in which the evanescence of the ...
... characters of their tints . In the thicker plate , by a mean of 20 careful observations made by the interposition of a certain standard red glass , on the ring of the third order at its minimum ( in which the evanescence of the ...
الصفحة 40
... character . The facts above adduced suffice to shew that vast differences exist in the scale of action which a single axis may exercise on the differently coloured rays ; and that , whether we regard the single apparent axis of any of ...
... character . The facts above adduced suffice to shew that vast differences exist in the scale of action which a single axis may exercise on the differently coloured rays ; and that , whether we regard the single apparent axis of any of ...
الصفحة 41
Cambridge Philosophical Society. others equal to it in energy but of an opposite character situated at right angles to it and to each other , with Dr. Brewster , or as being itself the real axis of polarization . For the resultant axis ...
Cambridge Philosophical Society. others equal to it in energy but of an opposite character situated at right angles to it and to each other , with Dr. Brewster , or as being itself the real axis of polarization . For the resultant axis ...
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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