Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
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الصفحة 12
... occur in objects to be represented . But the above cases are sufficient to include almost every thing which occurs in the representation of models , of machines , of philo- sophical instruments , and indeed , of almost any regular ...
... occur in objects to be represented . But the above cases are sufficient to include almost every thing which occurs in the representation of models , of machines , of philo- sophical instruments , and indeed , of almost any regular ...
الصفحة 27
... occurred to my recollection , in which , speaking of the conclusion I had arrived at by observations on homogeneous light in the ordinary variety of this mineral , he says , " Si vous êtes bien assuré de cette anomalie , " je désirerai ...
... occurred to my recollection , in which , speaking of the conclusion I had arrived at by observations on homogeneous light in the ordinary variety of this mineral , he says , " Si vous êtes bien assuré de cette anomalie , " je désirerai ...
الصفحة 31
... cast our eye over it , a deficiency of the indigo rays is perceived in all the scale of the extraordinary pencil , no pure or rich 32 blue occurring throughout its whole extent . In the developed by Polarized Light . 31.
... cast our eye over it , a deficiency of the indigo rays is perceived in all the scale of the extraordinary pencil , no pure or rich 32 blue occurring throughout its whole extent . In the developed by Polarized Light . 31.
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 ...
الصفحة 46
... occur . One of these crystals is represented in fig . 19 , in which we may observe that the faces x , x , x , and x ' , x ' , x ' , peculiar to this variety , lean or tend as it were , in one uniform direction round the summit A ...
... occur . One of these crystals is represented in fig . 19 , in which we may observe that the faces x , x , x , and x ' , x ' , x ' , peculiar to this variety , lean or tend as it were , in one uniform direction round the summit A ...
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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