MINERAtO(;iCAL NOTES: NO. III. — ANDERSON. 



U3 



different positions and axes. The crystal was mounted on the 

 goniometer with Goldschniidt's prism zone equatorial so that the 

 measured, could be threctly compared with the calculated angles ; 

 the indices were transformed to Dana's axes by the equations 

 h' = 1, k' = - k, I' = 2h. The angles are tabulated below. 



