514 
MEASUREMENTS OF CRYSTALS. 
MAGNETIC IRON ORE. (Continued.) 
Figs. 442, 443 and 444, secondary forms 
from Orange county. 
SPECULAR IRON ORE. Figs. 445 to 447 inclu- 
clusive. Page 385. 
Fig. 445. The primary, a rhomboliedron. 
P on P ... 86° 10 / and 93° 50' 
Fig. 446. A modification of a very obtuse 
rhombohedron (Fig. 447), forming 
a lenticular crystal, St. Lawrence 
county. 
IRON PYRITES. Figs. 448 to 4G2 inclusive. Page 
387. 
Fig. 448. The primary, a cube. 
Figs. 449, et seq. 
p 
on 
d 
152° 15' 
52" 
p 
on 
e 
153 
26 
15 
p 
on 
f 
or/. 
143 
18 
2 
p 
on 
0 
144 
44 
8 
d 
on 
d 
over the base, 
109 
28 
16 
d 
on 
f 
157 
47 
33 
e 
on 
e 
126 
52 
12 
e 
on 
e' 
or e" _ 
113 
34 
41 
0 
on 
o' 
or o" . 
146 
26 
33 
