866 MR. G. A. SCHOTT ON THE REFLECTION AND REFRACTION OF LIGHT. 
Glass—Air (29, p. 299). 
fx = 1-487 ; A = - -0064, B = -000296, F = - -00030, E = + -0154 ; e = + -00752. 
hr 
ft- 
'ST 
observed. 
■sr 
calculated. 
Differ¬ 
ence. 
Differ¬ 
ence, 
Cauchy. 
- X 
r . — — 
2 
observed. 
c cal¬ 
culated. 
Differ¬ 
ence. 
Differ¬ 
ence, 
Cauchy. 
O 
61 
A 
O 
51 
55 
o 
7 
38 
o 
7 
44 
1 
-6 
- '3 
•981 
•984 
-•003 
-•004 
60 
0 
45 
24 
6 
5 
6 
12 
-7 
+ 36 
•978 
•980 
-■002 
-■002 1 
59 
0 
37 
40 
4 
38 
4 
38 
0 
_ 0 
•975* 
•973 
+ •002 
+ •002 
58 
0 
26 
45 
3 
2 
O 
.> 
5 
-3 
-48 
•9.58 
•959 
-•001 
-•012 
57 
30 
20 
26 
2 
15 
2 
18 
-3 
0 
•949 
•944 
+ •005 
-•004 
57 
15 
17 
2 
1 
51 
1 
55 
-4 
- 1 
•935 
•933 
+ •002 
+ •001 
57 
0 
14 
56 
1 
36 
1 
32 
+ 4 
+ 21 
•913 
•916 
-•003 
-•004 
56 
45 
11 
17 
1 
12 
1 
9 
+ 3 
+ 5 
•898 
•888 
+ •010 
+ •010 
56 
30 
8 
7 
0 
52 
0 
48 
+ 4 
+ 5 
•846 
•832 
+ •014 
+ •009 
56 
15 
4 
37 
0 
29 
0 
29 
0 
+ 1 
•686 
•701 
-•015 
+ ■005 
56 
0 
3 
22 
0 
21 
0 
22 
-1 
- 1 
•420 
•417 
+ -003 
+ •024 
55 
45 
5 
15 
0 
33 
0 
36 
-3 
- 6 
•223 
•214 
+ •009 
+ •064 
55 
30 
8 
32 
0 
54 
0 
56 
-2 
- 5 
•141 
•133 
+ •008 
+ •014 , 
55 
15 
11 
52 
1 
16 
1 
18 
-2 
+ 7 
•085 
•095 
-•010 
•000 
55 
0 
16 
0 
1 
44 
1 
41 
+ 3 
- 1 
•058 
•073 
- -015 
-•003 
54 
30 
23 
3 
2 
34 
2 
27 
+ 7 
+ 4 
•046 
•050 
-•004 
-•002 
54 
0 
2/’ 
38 
3 
9 
3 
13 
-4 
- 8 
•036 
•038 
-■002 
-■001 
5.8 
30 
33 
56 
4 
3 
4 
1 
+ 2 
0 
•032 
•031 
+ •001 
+ -003 
Probable error . 
• • 
±2-63 
±10-77 
• • 
±•0053 
±•0119 : 
* Jamin gives ‘985 instead of ‘975 ; but the difference (Cauchy) "002 given by Jamin shows that 8 is a 
misprint for 7; in any case it does not make mucb difference. 
Fluors 2 Xir—Air (29, p. 300). 
jx = 1-441 ; A = + -0043, B = -00080, F = + -00104, E = — -0202 ; e = — -00969. 
if ). 
ft - 
■uT 
observed. 
'ST 
calculated. 
Differ¬ 
ence. 
Differ¬ 
ence, 
Cauchy. 
. X 
0 2 
observed. 
c cal¬ 
culated. 
Differ¬ 
ence. 
Differ¬ 
ence, 
Cauchy. 
o 
60 
/ 
0 
o 
52 
t 
7 
o 
7 
42 
0 
7 
28 
+ 14 
+ 13 
-•986 
-•978 
-■008 
-•006 
57 
30 
32 
30 
3 
50 
O 
O 
36 
+ 14 
+ 15 
-•957 
-■ 9.54 
-•003 
-■001 
57 
0 
25 
52 
2 
55 
2 
49 
+ 6 
+ 10 
-•943 
-•941 
-•002 
+ •001 
56 
30 
18 
18 
1 
59 
2 
3 
- 4 
- 3 
-•916 
-•917 
+ •001 
+ •007 
56 
0 
13 
0 
■ 1 
23 
1 
19 
+ 4 
+ 6 
-•868 
-•866 
-•002 
+ •008 
55 
45 
8 
10 
0 
52 
0 
59 
- 7 
- 3 
-•819 
-■808 
-•on 
+ •003 
55 
15 
6 
0 
0 
38 
0 
36 
+ 2 
+ 5 
-•463 
-•467 
+ •004 
+ •036 
55 
0 
6 
35 
0 
42 
0 
43 
- 1 
+ 5 
-•265 
-•269 
+ •004 
+ •017 
54 
45 
9 
15 
0 
59 
1 
0 
- 1 
+ 4 
-175 
-•171 
-■004 
■000 
54 
30 
11 
38 
1 
14 
1 
20 
- 6 
- 3 
-•125 
-•123 
-•002 
-•002 
54 
15 
15 
15 
1 
38 
1 
42 
- 4 
- 1 
-•099 
-■095 
-•004 
-•005 
54 
0 
20 
0 
0 
11 
2 
4 
+ 7 
+ 4 
-•078 
-•077 
-•001 
-•002 
53 
30 
26 
45 
o 
*> 
2 
2 
50 
+ 12 
+ 14 
-•059 
-•056 
-003 
-•004 
53 
0 
32 
0 
3 
45 
3 
37 
+ 8 
+ 10 
-051 
-•044 
-•007 
-•009 
Probable error . 
• • 
• • 
± 5-32 
± 5-56 
• • 
±•0034 
±•0080 
