352 OBSERVATIONS OF VIBRATIONS FOR THE ABSOLUTE Horizontal INTENSITY, 1846-7. 
| 
aeaVE | Ring | No. of | Semiarcs 
sitingen | Bar. | on or |Vibra-| of 
| off. | tions. | Vibration. 
d. h. UY ’ 
1846. 
June 24 4] F | On | 323 | 16to 3 
June 24 7|| F | Off | 369 | 23— 4 
Dec. 31 2/|) F | Off | 357 | 25— 3 
1847. | 
Jan. 1 3/|| F | On | 319 | 23— 5 
May 31 10] M | Off | 351 | 35—10 
June 15 7] M | Off | 357 | 50—15 
Sept. 10 21 | M | On | 319 | 53—24 
Sept. 10 23 | M | Off | 357 | 42—12 
Sept. 12 22]) B | On | 219 | 32—17 
Sept. 12 23 | B | Off | 357 | 22—10 
Observed 
Time of 
One 
Vibration. 
s. 
12-14708 
4-96988 
5-01310 
12-20431 
503812 
508227 
12-51917 
5-10007 
14-17608 
5-75353 
ee | 
Se. Div. one | 
BIFILAR. 
COEFFICIENTS FOR 
Reading | Tempe- 
Corrected, | rature. 
Torsion, 
= 
562-4 59-3 | 0-002143 
568-7 | 60-5 | 
560-9 | 40-5 
563-8 | 41-1 
574-8 | 69-1 
576-7 | 58-2 |) 
537-3 | 53-2 
545.0 | 53-8 | 
527-6 | 52-2 | 
524-9 | 52-1 || 
“001112 
-000834 
-001431 
-000300 
-000300 
-002132 
-000953 
-001807 
-000871 
Induction, 
Tempera- Sen 
ture, = q. = oa 
0-000300 | 0-00569 
-000300 | -00569 
-000300 | -00569 
000300 | -00569 
-000100 | -00417 
-000100 | -00417 
‘000100 | -00417 
-000100 | -00417 
-000090 | -00627 
-000090 | -00627 
DIMENSIONS OF THE INERTIA RINGS. 
For MAGNET F. 
3°635 inch. 
2°971 inch. 
0-142 inch. 
External Diameter, . . . 
Internal Diameter, .. . 
Thickness, .....+.-+- 
Weight, ....-....-. 
See footnote to the previous page. 
107477 grains. 
For MaGnet M. 
3°515 inch. 
2912 inch. 
0:187 inch. 
J254°50 grains. 
For MAGNET B. 
3:604 inch. 
2°932 inch, 
0172 inch, 
1299-40 grains. 
