484 
MEASUREMENTS OF CRYSTALS. 
QUARTZ. (Continued.) 
Fig. 182. 
P on/or z on f . 141°40 / 
Fig. 183. 
P on o. lGO 0 ^ 
o ono. 125 10 
TABULAR SPAR. Fig. 184. Page 270. 
Fig. 184. The primary, a right rhombic 
prism ? 
MonM / .„.95°20' 
SERPENTINE. Figs. 185 to 189 inclusive. Page 
272. 
Fig. 185. The primary, a right rectan¬ 
gular prism. The remaining figures 
are secondary forms, but the angles 
have not been determined. 
CHONDRODITE. Fig. 190. Page 281. 
Fig. 190. The primary, a right oblique 
prism, the greater angles being 112° 
12b 
TALC. Fig. 191. Page 284. 
Fig. 191. The primary, aright rhombic 
prism. 
M on M'. 120° O' 
PYROXENE. Figs. 192 to 223 inclusive. Page 286. 
Fig. 192. The primary, an oblique rhom¬ 
bic prism. 
M on M". 87° 5' 
M or M' on P lOOMO' or 100 25 
Fig. 193, et seq. 
M or M' on r .. 133°3o' 
M' on l . 136 15 
Mono . 145 9 
M or M' on s. 121 48 
P on r . 106 15 
Pons . 150 0 
P on t . 147 48 
o ono . 95 28 
o onr . 118 59 
o on s . 156 39 
r onw . 126 36 
s on s . 120 38 
u on u .. 131 8 
