A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 218
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 … What are the six systems of crystallization? Upon what is thisdivision founded? In the regular system, what is the relation ofthe axes? In the square prismatic system, what is their relation? 206 SYSTEMS OF CRYSTALLIZATION. a a is the principal axis, b b the secondary one. Inthe figure {Fig. 172),…
Chemistry · Physics
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