346 
MR. AIRY’S ACCOUNT OF THE HARTON EXPERIMENT 
Interval 
by Shelton. 
Interval 
by Earnshaw. 
Rate Shelton _ 
Earnshaw 
Log. 
R.tP_ Shelton 
Earnshaw 
h 
m 
S 
h 
m* 
S 
11 
48-25 
3 
11 
29-47 
1-0016345 
0-00070928 
7 
39-50 
4 
7 
15-52 
1-0016164 
0-00070142 
30 
40-92 
4 
30 
14-58 
1-0016245 
0-00070495 
24 
11-66 
4 
23 
46-18 
1-0016100 
0-00069865 
••3 
32 
26-34 
3 
32 
5-72 
1-0016203 
0-00070312 
58 
44-00 
3 
58 
20-91 
1-0016146 
0-00070065 
42 
9-58 
3 
41 
48-11 
1-0016133 
O-OOO7OOO8 
58 
2-00 
3 
57 
39-00 
1-0016130 
O-OOO69995 
••4 
22 
3-42 
4 
21 
38-06 
1-0016155 
0-00070104 
36 
56-83 
3 
36 
35-90 
1-0016105 
0-00069887 
••3 
21 
39-00 
3 
21 
19-75 
1-0015936 
0-00069154 
"4 
13 
24-75 
4 
13 
0-56 
1-0015935 
0-00069150 
••4 
0 
22-92 
3 
59 
59-83 
1-0016035 
0-00069584 
••3 
53 
35-00 
3 
53 
12-42 
1-0016138 
0-00070030 
••4 
40 
26-33 
4 
39 
59-23 
1-0016131 
0-00069999 
••3 
45 
54-67 
3 
45 
32-73 
1-0016212 
0-00070351 
••3 
37 
2-83 
3 
36 
41-77 
1-0016198 
0-00070291 
-4 
4 
8-50 
4 
3 
44-81 
1-0016191 
O-OOO7026O 
••4 
9 
8-00 
4 
8 
43-81 
1-0016209 
0-00070338 
••4 
12 
17-75 
4 
11 
53-26 
1-0016205 
0-00070321 
37 
41-00 
3 
37 
19-62 
1-0016396 
0-00071149 
19 
3-25 
4 
18 
37-71 
1-0016458 
0-00071418 
••4 
44 
9-25 
4 
43 
41-31 
1-0016415 
0-00071231 
39 
8-33 
3 
38 
46-78 
1-0016417 
0-00071239 
••4 
12 
2-34 
4 
11 
37-53 
1-0016433 
0-00071309 
43 
52-66 
3 
43 
30-66 
1-0016405 
O-OOO71I88 
•3 
38 
56-17 
3 
38 
34-69 
1-0016378 
0-00071071 
••4 
9 
18-00 
4 
8 
53-52 
1-0016393 
0 00071136 
••4 
1 
12-17 
4 
0 
48-49 
1-0016390 
0-00071123 
.•4 
7 
8-08 
4 
6 
43-89 
1-0016341 
0-00070910 
••3 
58 
47-00 
3 
58 
23-91 
1-0016143 
0-00070052 
••4 
6 
8-00 
4 
5 
44-14 
1-0016183 
0-00070225 
••4 
4 
32-17 
4 
4 
8-39 
1-0016234 
0-00070446 
••3 
40 
25-00 
3 
40 
3-57 
1-0016230 
0-00070429 
••5 
1 
35-00 
5 
1 
5-65 
1-0016247 
0-00070503 
••3 
52 
38-00 
3 
52 
15-35 
1-0016254 
0-00070533 
••3 
15 
40-08 
3 
15 
21-02 
1-0016262 
0-00070568 
••4 
14 
49-25 
4 
14 
24-41 
1-0016273 
O-OOO70616 
.■4 
55 
24-00 
4 
54 
55-10 
1-0016322 
0-00070828 
•3 
46 
3-00 
3 
45 
40-97 
1-0016270 
0-00070603 
83- 
84- 
85- 
86 - 
87- 
88 - 
89- 
90- 
91- 
92- 
93- 
94- 
95- 
96- 
97- 
98- 
99- 
100 - 
101 - 
102 - 
103- 
104- 
105- 
106 - 
107- 
108- 
109- 
110 - 
111 - 
112 - 
113- 
114- 
115- 
116- 
117- 
118- 
119- 
120 - 
121 - 
122 - 
Approximate 
Time of 
Comparison. 
1856. 
Number 
of Com- 
parisons. 
Mean of Times 
by Shelton. 
Jan. 
h 
h 
m 
s 
h 
m 
s 
0. 
23 
4 
6 
5 
14-00 
21 
46 
41-87 
1. 
2 
4 
9 
17 
2-25 
0 
58 
11-34 
1. 
6 
4 
13 
24 
41-75 
5 
5 
26-86 
1. 
10 
3 
17 
55 
22-67 
9 
35 
41-44 
1. 
15 
3 
22 
19 
34-33 
13 
59 
27-62 
.1. 
18 
3 
1 
52 
0-67 
17 
31 
33-32 
1. 
22 
3 
5 
50 
44-67 
21 
29 
54-23 
2. 
2 
4 
9 
32 
54-25 
1 
11 
42-34 
2. 
6 
4 
13 
30 
56-25 
5 
9 
21-34 
2. 
10 
3 
17 
52 
59-67 
9 
30 
59-40 
2. 
14 
4 
21 
29 
56-50 
13 
7 
35-30 
3. 
22 
4 
6 
5 
12-00 
21 
39 
43-29 
4. 
2 
4 
9 
26 
51-00 
1 
1 
3-04 
4. 
6 
4 
13 
40 
15-75 
5 
14 
3-60' 
4. 
10 
3 
17 
40 
38-67 
9 
14 
3-43’ 
4. 
14 
3 
21 
34 
13-67 
13 
7 
15-85 
4. 
18 
3 
2 
14 
40-00 
17 
47 
15-08' 
4. 
22 
3 
6 
0 
34-67 
21 
32 
47-81' 
5. 
2 
4 
9 
37 
37-50 
1 
9 
29-58 
5. 
6 
4 
13 
41 
46-00 
5 
13 
14-39 
5. 
10 
4 
17 
50 
54-00 
9 
21 
58-20' 
5. 
14 
4 
22 
3 
11-75 
13 
33 
51-46' 
7. 
22 
4 
5 
48 
34-50 
21 
18 
12-38 
8. 
2 
4 
9 
26 
15-50 
0 
55 
32-00 
8. 
6 
4 
13 
45 
18-75 
5 
14 
9-71 
8. 
10 
3 
18 
29 
28-00 
9 
57 
51-02 
8. 
14 
3 
22 
8 
36-33 
13 
36 
37-80 
8. 
18 
3 
0 
20 
38-67 
17 
48 
15-33 
8. 
22 
3 
6 
4 
31-33 
21 
31 
45-99 
9. 
2 
4 
9 
43 
27-50 
1 
10 
20-68 
9. 
6 
4 
13 
52 
45-50 
5 
19 
14-20 
9. 
10 
3 
17 
53 
57-67 
9 
20 
2-69 
9. 
14 
4 
22 
1 
5-75 
13 
26 
46-58 
10 . 
22 
4 
5 
56 
22-50 
21 
18 
57-71 
11. 
2 
4 
9 
55 
9-50 
1 
17 
21-62 
11. 
6 
4 
14 
1 
17-50 
5 
23 
5-76 
11. 
10 
3 
18 
5 
49-67 
9 
27 
14-15 
11. 
14 
3 
21 
46 
14-67 
13 
7 
17-72 
11. 
18 
3 
2 
47 
49-67 
18 
8 
23-37 
11. 
22 
3 
6 
40 
27-67 
22 
0 
38-72 
12 . 
2 
4 
9 
56 
7 75 
1 
15 
59-74 
12 . 
6 
4 
14 
10 
57-00 
5 
30 
24-15 
12 . 
11 
3 
19 
6 
21-00 
10 
25 
19-25 
12 . 
15 
4 
22 
52 
24-00 
14 
11 
0-22 
Mean of Times 
by Earnshaw. 
Section XI. — Auxiliary Tables for the reduction of the observations of Coincidences. 
70 . The rang-e of the Intervals of Coincidences in these experiments is not included 
7t 2 
in the tables given in Section III. The table of log which is placed below 
includes all that are required here. The method of using it is the same as in the 
preceding Series. 
The tables used before for the Correction for Arc were sufficient for the present 
experiments. 
