Smithsonian Report. I960— Dill 



Plate 5 



A rcj.'ion in a .L'adoliiiuini iron K'HiK-'t- cr.wslal in wliicii llic mauncli/.alinn lies along iuan\' 

 of the possible body diagonal preferred directions. 'I'he plane of llie cr\stal is perpen- 

 dicular to a three-fold axis. (See figure 7.) 



