A Tract on Crystallography: Designed for the Use of Students in the UniversityDeighton, Bell and Company, 1863 - 86 Seiten |
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adjacent poles differing arc joining arc PQ arcs AP bisected circle containing the planes containing the poles cos ZP cot BP crystal denoted e f g edges form hk form hk l form with inclined four faces fv+gw h k l hemihedral form Hence holohedral form inclined faces integers intersection joining any pole joining the poles meeting the plane p q r parallel faces parameters plane HKL planes h pole h kl positive or negative preceding equation qk+rl quadrant qv+rw ratios rhombohedron right angles sides signs sin AP sin sin PR situated with respect sphere of projection St John's College symbols of Q symmetrically situated system of planes tively zero zone containing zone-axes zone-circle containing zone-circle passing