EXPLANATION OF PLATE LXXXI. 



PflOSOENITK. 



Kigs. 1,2. Broken Hill, N. S.Wales. Orthographic ami clinographic 

 projection. 



Fonm.-c (001), a (100), m (110), u (210), o (201), x (111), to (221), s (211). 



MoNAZlTE. 



Figs. 3, 4. Trundle, N. S. Wales. Orthographic ami clinographic 



projection. 

 Fig. 5. California Creek, Queensland. 



Forms.— c (001), a (100), m (110), n (120), _ I (210). g (0]2), e (011), 

 m (021), x(101), p (1.03), o- (301), b (HI), d(U2), ('(211), z (311). 



Ckrussitb. 



Fig. 6. Talwong Mine, near Marnlan, N. .S.Wales. 



Forms.— b (010), m (110), x (012), £(011), i (021), p (031), p (111). 



