Derek Howse
Radar at sea
Greenwich Time and the Longitude
Background to discovery
Background to Discovery
Correspondence of John Flamsteed Vol. 2
Greenwich time and the discovery of the longitude
Greenwich time and the longitude
Nevil Maskelyne, the seaman's astronomer
The sea chart
Five Hundred Years of Nautical Science, 1400-1900
Francis Place and the early history of the Greenwich Observatory
Handlist of manuscript sea charts and pilot books executed before 1700