EXPLANATION OF PLATE XXXIX. 



Fig. 1. Diamond, Boggy Camp, Inverell, N.S.Wales; light paths in 

 stereographic projection ; clotted outline shows orientation 

 of the crystal. 



Figs. 2-6. Auglesite, Dnudas, Tasmania. 



Forms:— c- (100), a (100), m (110), n (120), o (Oil), d (102), 

 I (104), /• (112), z (111), T (221), // (122), (368), 

 p (324). 



Fig. 7. Pyrite, Mt. Stewart, near Leadville, N. S. Wales. 



Forms:— a (100), e (021), n (111), .s' (213). 



