Magnetic Observatory, Hobart Town. 285 
CuronometTRic Difference of Meridians employed in the 
Determination of the Longitude of Fort Macquarie, 
Sydney Harbour, with the Authorities for the same. 
Fort Macquarie and Paramatta Observatory. 
Captain Owen Stanley, H.M.S. “Rattlesnake,” H. M. Ss. 
ten chronometers, both ways, in a boat 
towed by a steam! vessel sci... 2.22.. O° (007 o2°87 
Fort Macquarie, east of Paramatta Observatory 
Puramatta Observatory and Garden Island, Sydney 
Harbour. 
By Chronometers. Captain P.P. King, R.N. 0° 00° 55°57 
By Rockets. Captain Sir James Ross, R.N. 
Vide Voyage of “ Erebus” and “Terror ;” 
Volts LL Geto tli belucmece really eel, 0 00° 55.85 
Paramatta Observatory, west of Garden Island 0° 00° 55°71 
Fort Macquarie and Garden Island. 
Paramatta Observatory, west of Garden Island 0°, 00° 55°71 
Ditto ditto, west of Fort Macquarie 0° 00° 52°87 
—_———. 
Fort Macquarie, west of Garden Island ........ 0° 00° 02°84 
ERE OSE 
