Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
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الصفحة viii
... District of Cornwall : by Rev. Professor SEDGWICK 291 XXII . On Double Crystals of Fluor Spar : by W. WHEWELL , Esq ...... 331 XXIII . On an Improvement in the Apparatus for procuring Potassium : by Rev. W. MANDELL 343 XXIV . Notice of ...
... District of Cornwall : by Rev. Professor SEDGWICK 291 XXII . On Double Crystals of Fluor Spar : by W. WHEWELL , Esq ...... 331 XXIII . On an Improvement in the Apparatus for procuring Potassium : by Rev. W. MANDELL 343 XXIV . Notice of ...
الصفحة 16
... like Switzerland , or the district of the Lakes in the north part of England , will afford another example . Isometrical horizontal lines may be drawn representing lines in the 16 Professor FARISH on Isometrical Perspective .
... like Switzerland , or the district of the Lakes in the north part of England , will afford another example . Isometrical horizontal lines may be drawn representing lines in the 16 Professor FARISH on Isometrical Perspective .
الصفحة 90
... district by persons qualified at the same time to explain its general structure , and to exhibit the phenomena presented by its more minute features . Such a survey we may indeed expect from the combined labours of the Cornish ...
... district by persons qualified at the same time to explain its general structure , and to exhibit the phenomena presented by its more minute features . Such a survey we may indeed expect from the combined labours of the Cornish ...
الصفحة 95
... districts , and brought few specimens away of any geological interest , I shall not detain my hearers by any further notice of them . After crossing the new bridge , between Tavistock and Callington , to the right bank of the Tamer , we ...
... districts , and brought few specimens away of any geological interest , I shall not detain my hearers by any further notice of them . After crossing the new bridge , between Tavistock and Callington , to the right bank of the Tamer , we ...
الصفحة 96
... districts near the junction of the two rocks ; and in various instances where those excavations have been carried to a sufficient depth ; the whole superincumbent schist has been pierced through , and the operations afterwards carried ...
... districts near the junction of the two rocks ; and in various instances where those excavations have been carried to a sufficient depth ; the whole superincumbent schist has been pierced through , and the operations afterwards carried ...
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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