Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
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الصفحة 25
... whole refraction , and the colours exhibited by thin or thick plates of this liquid should therefore deviate very sensibly from those in air or in Various solids too as chromate of lead , realgar , & c . could they be obtained by any ...
... whole refraction , and the colours exhibited by thin or thick plates of this liquid should therefore deviate very sensibly from those in air or in Various solids too as chromate of lead , realgar , & c . could they be obtained by any ...
الصفحة 28
... whole prismatic spectrum was displayed in the very first ring . To obtain a sufficient range of incidence , this plate was enclosed in olive oil , in a proper apparatus for measuring the inclination , and being exposed to polarized ...
... whole prismatic spectrum was displayed in the very first ring . To obtain a sufficient range of incidence , this plate was enclosed in olive oil , in a proper apparatus for measuring the inclination , and being exposed to polarized ...
الصفحة 29
... whole series indicates a separation of the colours much more considerable than in the Scale of Newton , but to examine the variation of the polarizing energy for the several simple colours more minutely , we must have recourse to ...
... whole series indicates a separation of the colours much more considerable than in the Scale of Newton , but to examine the variation of the polarizing energy for the several simple colours more minutely , we must have recourse to ...
الصفحة 31
... whole extent of the indigo and first portions of the violet is so small , that I was unable to obtain a measure even of the first ring at its max- imum , within the range of incidence my apparatus would admit . It then increases again ...
... whole extent of the indigo and first portions of the violet is so small , that I was unable to obtain a measure even of the first ring at its max- imum , within the range of incidence my apparatus would admit . It then increases again ...
الصفحة 32
Cambridge Philosophical Society. 32 blue occurring throughout its whole extent . In the ordinary pencil on the other hand , the excess of indigo appears immediately in the rich tints of indigo , purple and crimson which occur in the ...
Cambridge Philosophical Society. 32 blue occurring throughout its whole extent . In the ordinary pencil on the other hand , the excess of indigo appears immediately in the rich tints of indigo , purple and crimson which occur in the ...
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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