A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 218
Prismatic system. (4.) The Right Prismatic system. (5.) The Oblique Prismatic system. (6.) The Doubly Oblique Prismatic system. This division is founded on the relations of certainlines or axes which may be supposed to be drawnthrough the centre of the crystal round which its partsare symmetrically… … octahedron ; and, 3. Rhombic dodecahedron. THE SQUARE PRISMATIC SYSTEM. This has three axes, two of which are equal and thethird of a different length. Fig. 172. >-• H. <K)>> &=& a\7
Chemistry · Physics
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