Observations of Eclipses of Jupiter's first Satellite, made at the Royal Observatory at Greenwich compared with Observations of the same, made by Samuel Holland, Esquire, Surveyor General of Lands for the Northern District of America and others of his Party, in several Parts of North America, and the Longitudes of the Places thence deduced, by the Astronomer Royal Philosophical Transactions - volume 64 - Page 184

astronomical observations made there ; His Observations of eclipses of Jupiter's first satellite, at Greenwich ; At Greenwich ; Of Jupiter's first satellite, at the Royal Observatory at Greenwich, compared with observations of sundry places in North America