36 



University of California . 



I Vol. 3. 



h = +if }164| . This occurred on the same crystal as the pre- 

 ceding, and was also small and bright. 



$ p 



Measured 34°23' 44°28 / 



Calculated 34 8 44 32 



The next five of the following' forms occurred on the same 

 crystal. 



n = +14} 141 ( . Two faces of this form occurred. They were 

 both well developed and gave good reflections. 



<t> p 



27° 11' . 67°53' 



MeaSU1 ' ed 27 9 67 33 



Calculated 27 5 67 42 



A<- = +if } 165 \ . This was a very bright small face which gave 

 a good reflection. 



4> p 



Measured 38°ll' 39°40 / 



Calculated 38 1!) 39 43 



V — + If j 232 1 . This was a narrow face with a bright reflection . 



cf> p 



Measured 53°4l' 54°10' 

 Calculated 53 44 54 1 



P = — J #{123} . This form was represented by a small, well 

 developed face which gave a bright image. 



<A p 

 Measured 18°30' 21° 1Q' 



Calculated 18 5 20 51 



s = — 34 J 341 1 . Two large well developed faces of this form 



occurred on this crystal, and it was afterwards also 



observed on one other. The reflections were good. 



tf> p 



f 40°50' 70°50 / 



Measured 1 40 48 70 ^ 



2 { 40 32 70 52 



Calculated 40 40 70 45 



