A Narrative Of The Proceedings Relative To The Discovery Of The Longitude At Sea By Mr. John Harrison's Timekeeper Subsequent To Those Published In By Harrison, John By Thriftbooks
An Account Of The Going Of Mr. John Harrison's Watch, At The Royal Observatory, From May 6Th, 1766, To March 4Th, 1767. Together With The Original Obs By Maskelyne, Nevil By Thriftbooks
A Narrative Of The Proceedings Relative To The Discovery Of The Longitude At Sea By Mr. John Harrison's Timekeeper Subsequent To Those Published In By Harrison, John By Thriftbooks
