SCHALLER 



Average of meas. of 13 faces 8° 56' 72° 09' 



An average of the values with "signal distinct" is 8° 45' 72° 11' or nearly 

 the same. 



While these measurements are near to the angular values of the 

 simple form 1 15G2, | which are ^ = 8° 57', p = 70° 00', the p angle is suf- 

 ficiently different to preclude their reference to this form. If we take 

 the average measured value ^ = 8° 56', p = 72° 09', we find that the 

 ratio /i :^ =1 :5 (^ calc. = 8° 57'), while the ratio i.i =3.392 which gives 

 as the indices 1.5.6.1f or 4.20.24.7, which are not especially com- 

 plex and the calculated angles for which are ^ = 8° 57', p = 72° 20' 



