BETWEEN THE FREEZING AND BOILING-POINTS. 
187 
Table XIT.—Set of Readings for determining Box Coil Corrections. 
Coils. 
640 
-sum. 
32C 
-sum. 
160 
-sum. 
80- 
sum. 
40- 
sum. 
20- 
sum. 
10- 
sum. 
Reading of bridge- 
r 
24 
•979 
21 
•970 
20 
645 
19 
711 
25 
•113 
27 
640 
28 
787 
wire . . < 
14 
•950 
12 
•096 
10 
631 
9 
815 
15 
•135 
17 
624 
18 
911 
Equivalent length 
. 
10 
•029 
9 
■874 
10 
014 
9 
896 
9 
•978 
10 
016 
9 
876 
Correction to mean 
bridge-wire 
0 
+ 
•002 
+ 
003 
+ 
004 
— 
•001 
— 
002 
- 
004 
Corrected length . 
10 
•029 
9 
•876 
10 
017 
9 
900 
9 
•977 
10 
014 
9 
872 
Differences, 610-2 
x 320, &c. . 
+ 
•153 
— 
141 
+ 
117 
— 
•077 
— 
037 
+ 
142 
Correction in terms of 640 coil 
0 
— 
•077 
+ 
032 
— 
043 
+ 
•017 
+ 
027 
— 
057 
Table XIII.—Box Coil Corrections in Terms of 640 even Units. Box 1. 
Date. 
320. 
160. 
80. 
40. 
20. 
10. 
Bridge-wire. ; 
1898. 
May 6 th 
- -087 
+ -027 
- -038 
+ -021 
+ -034 
- -050 
+ -008 
„ 21st . 
- -072 
+ -028 
- -038 
+ -018 
+ -026 
- ’055 
+ -007 
„ 25th . . 
- -077 
+ -027 
- -036 
+ -017 
+ -028 
- -051 
+ -007 
1899. 
January 7th . 
- '055 
+ -033 
- -044 
+ -019 
+ -030 
- -051 
+ -007 
„ 9th . 
- -063 
+ -040 
- -042 
+ -020 
+ -030 
- -050 
+ -007 
„ 12th . 
- -069 
+ -029 
- • 045 
+ -019 
+ -024 
- -055 
+ -008 
April 27th . 
- -077 
+ -032 
- -043 
+ -017 
+ -027 
- -057 
+ -007 
Means . . . 
- -071 
+ -030 
- -040 
+ -019 
+ -029 
- -053 
+ -007 
Table XIY.—Box Coil Corrections in Terms of 640 even Units. Box 2. 
Date. 
320. 160. 
80. 
40. 
20. 
10. 
Bridge-wire. 
1900. 
February 10th 
„ ^ 13th 
„ 26th 
-•029 --054 
-•025 - -048 
-•030 --053 
+ -210 
+ -210 
+ -208 
+ -144 
+ -149 
+ 149 
- • 033 
- -030 
- ;031 
- -074 
- -071 
- -072 
+-0066 
+ -0061 
+ -0062 
Means . . . 
- -028 - -052 
1 
+ -210 
+ -148 
- -032 
- -072 
+ -0064 
2 b 2 
