| William Phillips - 1823 - 558 sider
...doubly oblique prism as the primary form of its crystals, which presents by the reflective'goniometer in one direction, four angles of 90°; in another, four alternately of 59" 25' & 12O" 35'; in another, four, alternately of 67" 15' & 112° 45': the latter are obtained with great... | |
| Francis Lieber, Edward Wigglesworth - 1835 - 630 sider
...cleavage parallel to the planes of a doubly oblique prism, which presents, by the reflective goniometer, in one direction, four angles of 90° ; in another,...120° 35°; in another, four, alternately of 67° 15f and 112° is'— the two cleavages, which are perpendicular to each other, being obtained with... | |
| 1844 - 636 sider
...oblique prism, which presents, by the reflective goniometer, in one direction, four angles of 00° ; in another, four, alternately of 59° 25' and 120°...four, alternately of 67° 15' and 112° 45' — the two cleavages, which arc perpendicular to each other, being obtained with the greatest facility, while... | |
| Popular encyclopedia - 1846 - 886 sider
...cleavage parallel to the planes of a doubly oblique prism, which presents, by the reflecting goniometer, in one direction, four angles of 90° ; in another,...25' and 120° 35'; in another, four, alternately of 07" 15' and 112° 45 '—the two cleavages, which are perpendicular to each other, being obtained with... | |
| Francis Lieber - 1851 - 630 sider
...cleavage parallel to the planes of a doubly oblique prism, which presents, by the reflective goniometer, in one direction, four angles of 90° ; in another,...four, alternately of 67° 15/ and 112° 45' — the two cleavages, which are perpendicular to each other, being obtained with the greatest facility, while... | |
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