480 
PEOFESSOR HENRY A. MIERS: AN ENQUIRY INTO 
February 5 .—The solution having been warmed to 35° was allowed to cool to 21° 
and the crystal was 
immersed again at 5.30 P.M., when it at once began to 
At 6.30 r.M. 
; f = 
= 17°, barometer 772 millim. 
139° 34',’ 
Theoretical Readings. 
Oa/3 
139° 17', 
o 139° 22f', 
o 
o 
11 
o 
o 
1—* 
29° 59', 
"v 
29° 39i', 
w = 29° 53', 
ojoj ^ = 0° 131', 
319° 33', 
319° 16i', 
o' =319° 22', 
o'o'^ = 0° 1 1'. 
At 6.45 P.M. 
; t = 
= 15-8° 
139° 14', 
30° O', 
w = 29° 52', 
ojco ^ = 0° 15^', 
29° 361', 
319° 41', 
o' =319° 22', 
o'o', = 0° 191', 
319° 121'. 
At 7.10 P.M. 
; t = 
= 15°. 
139° 37', 
^a(3 
139° 15', 
0 = 139° 221', 
oo, = 0° 14|', 
30° 21', 
"v 
29° 311', 
w = 29° 52', 
= 0° 20i', 
o'y 
319° 41', 
319° 14', 
o' = 319° 22|', 
o'o'^ = 0° 171'. 
At 12.30 A.M. ; t 
= 14-7°. 
°y 
139° 37|', 
Oa(3 
139° 15|-', 
o = 139° 22', 
oo, =0°13i'. 
( Jj ^ 
30° 0^', 
29° 59', 
w = 29° 521', 
( 0 ( 1 )^ = 0° 13-j', 
"y 
29° 40', 
O'y 
319° 41', 
_o'., 
319° 15', 
o' =319° 23', 
o'o'^ = 0° 18'. 
The following table sums uj) tlie residts of these 
observations, showing t 
