Transactions of the Cambridge Philosophical SocietyUniversity Press, 1822 |
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... parallel to the planes , on which the orthographic projections are taken , on a perfect scale . This will be easily understood , by supposing a cube to be the object re- presented . The ground plan would be a square representing both ...
... parallel to the planes , on which the orthographic projections are taken , on a perfect scale . This will be easily understood , by supposing a cube to be the object re- presented . The ground plan would be a square representing both ...
الصفحة 5
... parallel to any of the three radii should exist in the object , and be represented in the picture , their representations will bear to one another , and to the rest of the sides of the cube , the same proportion which the lines ...
... parallel to any of the three radii should exist in the object , and be represented in the picture , their representations will bear to one another , and to the rest of the sides of the cube , the same proportion which the lines ...
الصفحة 6
... parallel to the sides of a cube , properly placed on the object . And the eye of the artist should be supposed to be placed at an indefinite distance , as before explained , in a diagonal of the cube produced . DEFINITIONS . The last ...
... parallel to the sides of a cube , properly placed on the object . And the eye of the artist should be supposed to be placed at an indefinite distance , as before explained , in a diagonal of the cube produced . DEFINITIONS . The last ...
الصفحة 8
... parallel to the three directions of the lines of the cube , as has been already shewn ; and likewise the mode of representing any other straight lines , by finding their ex- tremities ; or curved lines , by finding a number of points ...
... parallel to the three directions of the lines of the cube , as has been already shewn ; and likewise the mode of representing any other straight lines , by finding their ex- tremities ; or curved lines , by finding a number of points ...
الصفحة 10
... parallel to the axle , in a face - wheel , or tending to a proper point in the axle in a bevil - wheel . And nearly in the same way may the floats of a water - wheel be correctly represented . If a series of concentric ellipses , such ...
... parallel to the axle , in a face - wheel , or tending to a proper point in the axle in a bevil - wheel . And nearly in the same way may the floats of a water - wheel be correctly represented . If a series of concentric ellipses , such ...
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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