332 
MR. S. DUNKERLEr ON THE WHIRLING 
Pulley I. 
Number 
of 
experi¬ 
ment. 
Date. 
Conditions. 
Observed 
sjpeed. 
! Cal¬ 
culated 
speed for 
. shaft only. 
Cal¬ 
culated 
speed for 
pulley 
only. 
1 
Resulting 
\ calculated 
speed. 
Per¬ 
centage- 
error. 
h 
in 
inches. 
h 
in 
inches. 
Cl 
in 
inches. 
C2 
in 
inches. 
119 
Dec. 20, 1892 
2-91 
29-10 
28-10 
1-00 
1938 
1943 
19337 
1 
1933 
+ -2 
120 
2-91 
29-10 
25-10 
400 
1798 
1943 
4375 
1776 
+ 1-2 
121 
2-91 
29-10 
20-10 
9-00 
1522 
1943 
2583 
1553 
-- 2-0 
122 
Jan. 30,1893 
2-91 
26-10 
14-55 
14-55 
1489 
1943 
2466 
1526 
— 2-5 
123 
2-91 
29 10 
9-00 
20-10 
1651 
1943 
3418 
1689 
- 2-3 
124 
2-91 
29-10 
4-00 
25-10 
1867 
1943 
8044 
1889 
- 1-2 
125 
2-91 
29-10 
1-00 
28-10 
1935 
1943 
49951 
1942 
- -3 
1 
126 
Jan. 30,1893 
4-57 
2743 
6-00 
21-43 
1975 
2058 
4900 
1897 
+ 3-9 
127 
4-57 
27-43 
13-71 
13-71 
1675 
2058 
2601 
1614 
+ 3*6 
128 
4-57 
27-43 
21-43 
6-00 
1789 
2058 
3346 
1753 
+ 2-0 
129 
4-57 
27-43 
26-43 
1-00 
2029 
2058 
19756 
2047 
- -9 
114 
Dec. 20, 1892 
16-00 
16-00 
1-00 
15-00 
4430 
4484 
31664 
4440 
- -9 
115 
16-00 
16-00 
4-00 
12-00 
3930 
4484 
8114 
.3925 
+ -1 
116 
16-00 
16-00 
8-00 
8-00 
3420 
4484 
4987 
3334 
-f 2-5 
117 
16-00 
16-00 
12-00 
4-00 
3846 
i 4484 
6318 
3657 
+ 4-9 
118 
75 
16-00 
16-00 
15-00 
1-00 
4402 
^ 4484 
24550 
4411 
— -2 
Pulley II. 
Number 
of 
experi¬ 
ment. 
Date. 
Conditions. 
Observe.i 
speed. 
Cal¬ 
culated 
speed for 
shaft only. 
Cal¬ 
culated 
speed for 
pulley 
only. 
Resulting 
calcidated 
speed. 
Per¬ 
centage 
error. 
h 
in 
inches. 
^2. 
in 
inches. 
Cl 
in 
inches. 
C 2 
in 
inches. 
98 
Dec. 2, 1892 
2-91 
29-10 
1-00 
28-00 
1983 
1943 
37711 
1940 
L 2-2 
99 
2-91 
29-10 
4-00 
25-10 
1894 
1943 
5410 
1829 
-t- 3-4 
100 
2-91 
29-10 
9-00 
20 10 
14o9 
1943 
2280 
1479 
- 1-3 
101 
2-91 
29-10 
14-55 
14-55 
1234 
1943 
1644 
1255 I 
- 1-7 
102 
2-91 
29-10 
20-10 
9-00 
1279 
1943 
1722 
1290 
- -8 
103 
Dec. 5, 1892 
2-91 
29-10 
25-10 
4-00 
1640 
1943 
2933 
16-20 
+ 1-2 
104 
2-91 
29-10 
28-00 
1-00 
1975 
1943 
15317 
1928 
1 
+ 2-4 
105 
Dec. 5, 1892 
4-57 
27-43 
26-43 
1-00 
2177 
2058 
15608 
2040 ■ 
+ 6-3 
106 
Dec. 7, 1892 
4-57 
27-43 
21-43 
6-00 
1570 
2058 
2233 
1513 
+ 3-6 
107 
4-57 
27-43 
13-71 
13-71 
1.347 
2058 
1745 
1330 
+ 1-3 
108 
Dec. 8, 1892 
4-57 
27-43 
6-00 
21-43 
1829 
2058 
.3277 
1743 
+ 4-7 
113 
Dec. 19, 1892 
16-00 
16-00 
1-00 
15-00 
4524 
4484 
24173 
4411 
+ 2-5 
112 
16-00 
16-00 
4-00 
12-00 
3213 
4484 
4842 
8286 
- 2-2 
109 
Dec. 9, 1892 
16-00 
16-00 
8-00 
8-00 
2600 
4484 
3325 
2671 
- 2-7 
no 
Dec. 14, 1892 
16-00 
16-00 
1200 
4-00 
3056 
4484 
4288 
3100 
- 1-4 
111 
Dec. 15, 1892 
16-00 
16-00 
15-00 
1-00 
4220 
4484 
18816 
4362 
- 3-4 
