THE VARIATIOX OF ANGLES OBSERVED IN CRYSTALS 
503 
Table V.—Series of Consecutive Determinations made bv Method of Total 
Reflection. 
Tartaric Acid, Solution Sj. 
No. 
m. 
e. 
/X. 
t. 
/X at 19°. 
1 
67-10 
o / 
27 16 
1 - 43065 
16-8 
1 - 4302 
2 
65-18 
27 5 
1-42883 
17-8 
1-4286 
3 
63-37 
26 40 
1-42464 
18-5 
1-4245 
4 
61-65 
26 23 
1-42174 
19 
1-4217 
5 
60-03 
26 13 
1-42002 
19-3 
1-4200 
6 
58 - 489 
25 55 
1-41690 
19-5 
1-4169 
7 
55-63 
25 20 
1-41069 
19-6 
1-4108 
8 
54-31 
25 16 
1-40997 
19-6 
1-4101 
9 
53-04 1 
25 6 
1-40816 
19-6 
1-4083 
25 3 
1-40762 
19-2 
1-4077 
10 
51-84 
24 56 
1-40634 
19-2 
1-4064 
11 
50 - 68 
24 46 
1-40451 
19 
1-4045 
12 
49-58 
24 38 
1 - 40304 
19 
1-4030 
Table VI.—Series of Consecutive Determinations made by Method of Total 
Reflection. 
Tartaric Acid, Solution 2. 
50 cub. centims. of the solution (50 cut), ceutims. S^ 25 cub. centims. water). 
No. 
m. 
0. 
f. 
/X at 19°. 
13 
49-05 
24 22 
1 - 40007 
o 
17-2 
1 - 4000 
14 
45 - 39 
23 55 
1-39498 
16 
1-3944 
15 
42-23 
23 29 
♦ 1 - 39002 
16-4 
1-3895 
16 
38-71 
23 8 
1 - 38595 
16-6 
1 - 3854 
17 
37 - 08 
22 49 
1-38222 
16-8 
1-3818 
18 
34 - 94 
22 35 
1-37945 
17 
1-3790 
Table VII.—Series of Consecutive Determinations made by Method of Total 
Reflection. 
Tartaric Acid, Solution So. 
No. 
‘HI. 
9. 
/X. 
/. 
/X at 19°. 
1 
68-78 
27 23 
1-43176 
16^-6 
1-4312 
2 
64-11 
26 37 
1-42413 
18 
1-4239 
3 
60-03 
25 57 
1-41724 
18-3 
1-4171 
4 
56 - 43 
25 22 
]-41105 
18-5 
1-4110 
5 
53-25 
24 57 
1-40653 
18-7 
1-4065 
6 
50 - 40 
24 33 
1-40211 
18-7 
1-4021 
