Brush and Dana—Fairfield County Minerals. 361 
c ) 001 8 4-4 141 
b it 010 g iV 320 
a G7 100 m yep 110 
p -1’ 111 n +3" 230 
q ¥ 112 0 i-2? 120 
r -}’ 113 a Pg 110 
The following list includes the principal angles (supplement) 
for the different planes, calculated from the axial values given 
above. 
Calculated. Measured. 
CAG 001.100 = 8 *gg° 
cab 001.010 = 18° 337 79° 
cam 100,110. = “84° 39’ 
CAp 001A 111 33° #33° 
Cag 001.112 = 18° 31’ 19° 
Car 001,113 = 12° 43’ 13° 
CAs 001,141 = 53° 34’ 
aab 100,110 = 102° *102° 
Gag 100.320 = 10° 57’ 10° 
am 100,110 = 16°31’ 16° 30° 
Gan 100.2230 2= ° 40” 95° 
Bro 100..120,. = ea 1 id 32° 
arp 100,110 = 14° 45’ 16° 
anp 100,111 = 56° 30’ *56° 307 
aang 100.112 = 70° 15’ 
@ar 100,113 = 175° 48’ 
Gas 100,141 = 51°17 
bap 010.110 = 116° 45’ 
b A g 010 A 320 — 91° 
b am 910.119: = 85° 2 
ban 010.230 = %7° 20’ 
bao 10,120 = 40’ 
bap 010,111 = 178° 30’ *78° 30° 
bag 010.112 = 178° 2 78° 
6 At 010. 113 = 78° ¢ 
bas 010,141 = 121° 16’ 120° 30’ 
mp 1104111 51° 397 
Mag Hoek? = Oo OY 
Mar L102 115) = 
