3i0 MR. AIRY’S ACCOUNT OF THE HARTON EXPERIMENT 
Table exhibits this work ; the fundamental numbers being obtained from a table 
which is to follow : — 
No. of 
Swing. 
Order of 
Observers. 
Symbol for the Errors 
of Logarithmic Rate 
Earnshaw 
Errors 
inferred from 
the computed 
Logarithmic 
Rates. 
No. of 
Swing. 
Order of 
Observers. 
Symbol for the Errors 
of Logarithmic Rate 
Earnshaw 
Errors 
inferred from 
the computed 
Logarithmic 
Rates. 
Above. 
Below. 
Shelton 
produced by each 
observer’s error in the 
estimation of time. 
1 
Above. 
Below. 
Shelton 
produced by each 
observer’s error in the 
estimation of time. 
3. 
D 
P 
E 
R 
D+R-P-E 
- 277 
47. 
s 
D 
C 
E 
S +E-D-C 
- 946 
6. 
P 
C 
R 
S 
P-hS -C-R 
— 45 
50. 
D 
P 
E 
R 
D+R-P-E 
+ 135 
9. 
C 
E 
S 
P 
C+P-E-S 
+ 134 
55. 
C 
R 
S 
P 
C+P-R-S 
+ 2850 
12 . 
E 
R 
P 
C 
E-bC-R-P 
-1957 
58. 
R 
E 
P 
D 
R+D-E-P 
— 381 
15. 
R 
E 
c 
s 
R+S -E-C 
+ 512 
61. 
E 
S 
D 
C 
E+C-S -D 
— 254 
18. 
E 
C 
s 
p 
E+P-C-S 
+ 2257 
64. 
S 
P 
C 
R 
S +R-P-C 
— 1621 
21. 
C 
s 
p 
R 
C-f R-S -P 
+ 1125 
67. 
P 
D 
R 
E 
P+E-D-R 
+ 443 
24. 
s 
D 
R 
E 
S +E-D-R 
+ 177 
68. 
D 
C 
E 
S 
D+S -C-E 
-1079 
29- 
s 
E 
C 
D 
S -bD-E-C 
- 933 
71. 
C 
R 
S 
P 
C+P-R-S 
+ 1156 
32. 
E 
R 
D 
P 
E+P-R-D 
+ 360 
74. 
R 
D 
P 
E 
R+E-D-P 
— 1135 
35. 
R 
C 
P 
S 
R+S -C-P 
— 1581 
77. 
D 
S 
E 
C 
D+C-S -E 
+ 1083 
38. 
C 
D 
s 
E 
C+E-D-S 
+ 747 
80. 
s 
p 
C 
R 
S +R-P-C 
— 1706 
41. 
D 
R 
E 
P 
D+P-R-E 
+ 956 
82. 
p 
D 
R 
P 
2P— D — R 
— 465 
44. 
R 
S 
P 
C 
R+C-S-P 
+ 531 
Equations, 
18. C— 2.D+ 2.E+ P— 4. R— 15.8=4-10557 
— 2.C+15.D— 14.E- 5.P4- 5.R+ 8=4- 577 
4- 2.C- 14.DH-18.E-f 2.P— 6.R— 2.8=— 458 
C- 5.D-1- 2.E-1-22.P— 16.R— 4.8=H-14048 
— 4.C-f 5.D— 6.E-16.P4-19.R-I- 2.8=— 7873 
— 15.C4- D— 2.E- 4. PH- 2.R4-18.8= — 16851. 
