Magnetic Observatory, Hobart Town. 279 
RESULTS obtained for the Longitude of the Magnetic 
Observatory, Hobart Town, East of Greenwich. 
IN TIME. IN SPACE. 
AUTHORITY. H ae ° , ” 
Commander Kay, moon culminating star, ee 
observations made in 1843, 1844, 1846...... 9- 49- 22:7 | 147: 20- 40- 
Commander Kay, eclipse of Sun, June 15, 
1844, observation at ending only ...... 
Commander Kay, eclipse of Sun, Feb. 1, 1851 
9- 49° 37° 147: 24: 15. 
? 
observation at beginning only ............... 9: AQ: 25:4 | 47> 2d; 21. 
Commander Kay, eclipses of Jupiter’s Satel- 
[EES SISI 4 Poe ceriadotcced “> soseeneoee uccocceece ES6os 9° 49 33°°6 | 147: 23° 24° 
By chronometric difference of meridians, 
Hobart Town Observatory and Paramatta 
Opservatoryaees eect oceseowscteeress sch ao se: 9: 49> 28.1 | 147° 22- 02° 
By chronometric difference of meridians, 
Hobart Town Observatory and Tablee...... 9- 49- 31.4 | 147: 22° 51- 
By chronometric difference of meridians, 
Hobart Town Observatory and Fort Mac- 
(ERNIE cagoou cco adedogae76 sudcoKoosuodocodo 000 JeoueT 9- 49- 28°3 | 147° 22- 24- 
By chronometric difference of meridians, 
Hobart Town Observatory and Portland... | 9° 49° 25°8 | 147- 21° 27- 
Hobart Town Observatory, east of Greenwich | 9° 49° 29-04) 147: 22: 18: 
The same, rejecting Jupiter’s Satellites .....} 9° 49° 28.39) 147° 22° 09° 
H. M S§8. i 4 i 
Preferred...... 9: 49: 28:4—147- 22- 06: East of Greenwich. 
Note.—I subjoin the difference of meridians between Hobart Town and 
the Cape of Good Hope, supplied in a memorandum from Mr. Tyers, and 
measured on four separate occasions; of course, from the length of the 
voyage, the measurements are not entitled to much confidence for an 
accurate determination, but the accordance is satisfactory :— 
Symon’s Bay, Cape of Good Hope and Hobart Town, (Fort Mulgrave.) 
H. M. 8. 
By H.M.S. Beagle in 1838... 8° 35° 34: 
H.M.S. Alligator in 1838 8- 35° 30. 
H,M.S. Beagle in 1836... 8° 85° 54. 
H.M.S. Fly in 1842 ...... 8° 36° 07. 
u 
Dan nue antr arson ELobart lowest 
Meaniof ally 2-22.05. 8: 35° 46:°2—128° 56° 33 of Symon’s Bay. 
Longitude of the Cape Observatory, (Mem. Astro. Soc.) 
east of Greenwich 5 2 . 
Symon’s Bay,west of the Observatory, (Captain Stokes, B. N.) 
H. M. Ss. 
4° 13° 55 
0° 00° 11°3 
- 13° 43-7 
> 85° 46°2 
Symon’s Bay, east of Greenwich : 0 
Hobart Town, (Fort Mulgrave), east of Symon’s Bay; 
Hobart Town, east of Greenwich . : : 
Observatory, Hobart Town, west of Fort Mulgrave, Hobart 
Town 3 5 . 5 5 zs 4 5 
Hobart Town Observatory, east of Greenwich, measured’ 
from the Cape of Good Hope . . . 2 slit 
