Earnshaw, Thomas, 1749 - 1829 (maker of watches and chronometers)
Found in 2 Collections and/or Records:
Containing tables of comparison relating to timekeepers A82, A176, A1736, E520 and E543.
Includes accounts of the rates and errors of the timekeepers by Earnshaw and Arnold, and summaries of observations to determine longitude made in Princess Royal Harbour, at Bay 10, in Port Phillip Bay and at Cattle Point on the east side of Sydney Cove, Port Jackson.
- Port Phillip Bay 1