1066 



Section 12: Miscellanea. 



Xo 63 472 



b t ,c, = Octohedron. 

 Tesseral System. 



63 472 B. 



63 472 A. 1:8. 



a 2 . I),, c, = Pointed 

 quadrate Pyramid (21'). 



63 472 C. 



:\ . b,, c, = Obtuse 

 quadrate Pyramid (P). 



63 472 D. 



= Obtuse 

 Rhombic Pyramid. 



63 472 F. 



= Aciltr 



Rhombic Pyramid. 

 63 472 E. 



c, (inclined for- 

 ward) = Acute mono ?li lie 

 [Pyramid. 



63 472 G. 



c, (inclined for- 

 ward)^ Obtuse mono:linic 

 Pyramid. 



63 472 H. 



"2- ''i- ''2 (&11 axes inclined 



towards each other) = Acute 



triclinia Pyramid. 



63J472J. 



a,, b,, c,, d = hexagonal 

 Pyramid. 



63 472 K. 



63,472. Axial Cross after Nestler, Figs. A K, for demonstrating the fundamental forms . s. d. 

 of all six crystal systems (octohedra and pyramids) 1. 6. 



All the axial halves consist of two tubes which telescope in each other and which can be firmly 

 clamped in different positions by a spring on the outer tube engaging in notches in the inner tube. 

 Elastics are drawn through the ends of the axes representing the edges of the pyramids. 



Some examples are shewn in Figs. 63,4728 63,472 K. In these the vertical axis is designated 

 by a, the others by b, c and d; and the individual rest-points of the vertical axis reckoned from 

 the central point are designated by 0, 1, 2, 3, and those of the other axes by 1, 2, 3. 



Collection of Copies of Precious Stones, Figure, ideal crystallization forms, imitated in 

 shape and colour, approx. 25 mm in size. 



Number of Stones . 



12 



24 



36 



50 



60 



88 



In Cardboard / List No. 63,473 

 Box ... I 0. 14. 



In Case . 



f List No. 63,479 

 I 1.0.0 



63,485. 4 Diamond Copies, in rase, containing, Koh-i- Noor as iv-cut. Keireiit. Florentine, 



Orloff, cf. Fig. 63,486 <>. Hi. 



63,486. 9 Diamond Copies in case, F i g u r e, as follows: Saucy, Hope. Koh-i- Nuor as re-cut. 

 Great Mogul, Florentine, liegent, Southern Star, Koh-i- Noor as originally cut, Orloff 



1. 6. 



Cl. 3140. 3141, 3142, 

 3139,3143.3144. 

 3147,3148,3145,3148. 



