138 



TRAVIS— PYRITE FROM CORNWALL. 



[June 22 



(In the zone or (221) and (321).) 



542A221. 



Measured 6° (No. 11 ; signal good) 



Measured 6° 13' (No. 15) 



Calculated 6° 24' 



The faces observed on each crystal are set forth in the following 

 table : 



("^ indicates that the measurements were used to determine the form and 

 are given above under the description of faces.) 



