334 W. Gibbs and F. A. Genth 
liquid contains chlorid of Luteocobalt, chlorid of Purpureoco- 
balt, and a leek-green crystalline body, which we have called 
provisionally Praseocobalt, but which we have not yet carefully 
studied. 
yellow color, and crystallizes fate be The rami aa to 
the right rhombi or ‘trimetric s system; they are hemihedral and 
isomorphous with the chlorid of Luteocobalt. According to 
Prof. Dana’s determinations, the more usual forms are repre- 
sented in figs. 11, 12, 13, 14. In figs. 18 and 14 the sulphate is 
mixed with the chlori 
I: I 118° 38’ O:% =187°19’ 13:13 = 88° 44’ and 91° 16’ 
O:1t= 146° 4’ O:3 =118°28’ 12:14 = (over 0) = 88° 22’ 
1%:17=112° 8’ (over 0) 0:31 =107° 57’ 
31: 8% = 127° 18! (adjacent) O:12—=134° 11’ 
These forms in other symbols are 0, o, 8-&, 2, 7, 1-&, (fig. 
11). 0,0, %, £ 1-&, 3-& (fig 12). 1-6, oof, "8-% (6g, 18). 
1-&, oj, 8-%, 1-@ (fig. 14), 
; a:b6:¢=1-039:1:1:539. 
do not agree precisely i in me 
ans a a different fundamental form. Adopting the same fun- 
| tal form as in the above ender the clearing would Das 3 
