512 
MEASUREMENTS OF CRYSTALS. 
ZIRCONITE. (Continued.) 
P 011 5 ... 117°48' 
Poni ... 152 6 
l on s . 135 0 
(The remaining measurements are given 
on page 510.) 
NATIVE IRON. Fig. 436. Page 382. 
Fig. 436. The primary, a regular octa¬ 
hedron. 
MAGNETIC IRON ORE. Figs. 437 to 444 in¬ 
clusive. Page 383. 
Fig. 437. The primary, a regular octa¬ 
hedron. 
PonP' _ 109°28 / 16 // 
Fig. 438. A cuneiform octahedron from 
Essex county. 
Figs. 439, et seq. 
P on i .... .125°15 / 52 // 
