Related time notes
- Royal Navy Survey Ships: A History - Patreon 55 (Long Patrol)19:38How Admiralty hydrography became an institutionNotable Point
- Patreon 55: History of Survey Ships in the Royal Navy44:23How Admiralty hydrography became an institutionChapter
- Pepsiships 47: Age of Sail2:42:56Before standard weather scales, sailors judged wind by sea and riggingNotable Point