470 
PROFESSOR HENRY A. MIERS : AN ENQUIRY INTO 
Next day 
~o 181° 20 ^' two images, one vertically above the other, 
Ai 126° 421', 
A3 126° 391'. 
,, beside the other. 
oAi = 54° 38', oAo = 54° 41', 
two hours later A yielded a single image, and oA = 54° 38|^'. 
Another crystal yielded the following from a pair of adjacent brilliant octahedr 
faces, o and oj. 
Oj 96° 49 |-' two images, one vertically 
03 96° 40' single image, 
ojo 26° 21' 
26° 12 |-' two images, one vertically 
Two days later the readings had become 
Ol 
96° 49' 
not quite in the zone. 
03 
96° 38' 
in the zone. 
6)3 
26° 24' 
not quite in the zone. 
"1 
26° 10 ' 
5) 5) 55 
above the other, 
= 70° 37', 
036)3 = 70° 19', 
above the other. 
0]6)j = 70° 39', 
0.6)., = 70° 14', 
On the following day the readings were 
Ol 96° 
49' 
below the horizontal wire 
0 ^ 6)3 =70° 27', 
0 
0 
461' 
above ,, ,, ,, 
036)3 = 70° 24^', 
03 96° 
37I' 
on the horizontal wire 
036)3 = 70° 15^' 
6 )., 26° 
22 ' 
55 55 55 
A day later, in the morning 
96° 49', 
03 96° 47' three overlapping images, 
03 96° 39', 
6)326° 21' 
0 )^ 26° 10 ' two ov^erlapping images. 
0 ^ 6)1 = 70° 39', 
036)3 = 70° 18', 
