Reference Code: GBR/0180/RGO 218/2/1
Scope and Contents
A record of observations at sea with calculations and notes, including notes on observations of Jupiter's satellites and on his chronometers during his voyage to Barbados [to test John Harrison's chronometer H4].
1763-09-20 - 1763-10-19
Conditions Governing Access:
From the Management Group:
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