492 
MR. BAILY ON THE CORRECTION OF A PENDULUM, ETC 
Table II. — Continued. 
No. 30. Iron bar. 
Corrections for 
True number 
Knife 
edge. 
No. 
Total 
Interval. 
No. of 
Coincid. 
Mean 
Interval. 
of vibrations 
in a mean 
Arc. 
Therm. 
Barom. 
Rate. 
solar day. 
B 
205 
h m s 
0 30 8,5 
2 
s 
904-250 
+ 1-224 
—4-637 
+ 14 301 
+ •400 
86220-190 
b 
206 
1 46 0,5 
7 
908-643 
•726 
4-478 
14-625 
•300 
86220-999 
B 
207 
1 0 16,0 
4 
904000 
1-052 
4-493 
14-638 
•300 
86220-346 
b 
208 
1 16 36,0 
5 
919-200 
1-016 
4-478 
14-651 
•300 
86223-499 
B 
209 
1 30 30,0 
6 
905 000 
•856 
4-435 
14-651 
•300 
86220-433 
b 
210 
1 15 53,5 
5 
910-700 
•997 
4-392 
14-657 
•300 
86221-818 
b 
211 
0 15 11,5 
1 
911-500 
1-527 
5-054 
14-821 
•260 
86221-976 
b 
212 
0 45 59,0 
3 
919-667 
1-194 
5-069 
14-818 
•260 
86223-309 
B 
213 
1 0 36,5 
4 
909-125 
1052 
5040 
14-803 
•260 
86221-002 
b 
214 
1 1 15,0 
4 
918-750 
1-048 
5-054 
14-795 
•260 
86222-967 
B 
215 
1 0 28,5 
4 
907-125 
1-024 
5-054 
14-786 
•260 
86220-524 
B 
216 
1 29 54,0 
6 
899-000 
"856 
3-085 
14-432 
•140 
86220-129 
b 
217 
2 1 3,5 
8 
907-937 
•670 
3-128 
14-430 
•140 
86221-791 
B 
218 
1 0 2,5 
4 
900-625 
1-077 
3-172 
14-396 
•140 
86220-574 
B 
219 
1 0 29,0 
4 
907-250 
1-000 
5-213 
14-511 
•470 
86220-302 
B 
220 
1 15 35,0 
5 
907-000 
•860 
5073 
14-508 
•470 
86220-247 
B 
221 
0 45 3,5 
3 
901-167 
1-081 
3-802 
14-405 
•540 
86220-473 
b 
222 
1 15 53,0 
5 
910600 
•837 
3-672 
14-398 
•540 
86222-338 
b 
223 
1 31 5,0 
6 
910-833 
•807 
3-571 
14-391 
•540 
86222-450 
b 
224 
1 15 49,0 
5 
909-800 
•881 
3-485 
14397 
•540 
86222-401 
b 
225 
1 15 41,5 
5 
908-300 
•912 
2-664 
14-338 
•540 
86222-881 
b 
226 
1 15 46,0 
5 
909-200 
•868 
2-607 
14-338 
•540 
86223-077 
B 
227 
1 29 41,0 
6 
896-333 
•854 
2-534 
14-323 
•540 
86220-504 
B 
228 
1 14 39,0 
5 
895-800 
•872 
2-462 
14-313 
•540 
86220-362 
B 
229 
1 46 55,5 
7 
916-500 
•473 
5-501 
14-544 
—•010 
86220-962 
b 
230 
2 3 22,5 
8 
925-312 
•423 
5-193 
14-561 
•010 
86223033 
Note to page 417.—It was omitted to be stated, with reference to the pendulum No. 35—38, that 
the steel collars, which are attached to the tube, and on which the pendulum swings, are divided, 
on their outer circumference, into 16 equal parts ; thus making 8 several diameters (numbered from 
1 to 8) on- which the vibrations of the pendulum may be varied. I have also got 3 separate pairs of 
agate knife edges, differing from each other in sharpness, for the purpose of ascertaining whether the 
results are affected by such an alteration of this part of the apparatus. But, at present, I have not 
made any experiments with this view. 
