The History And Evolution of Navigation
By Mike Hammond Introduction-The Lighthouse of Alexandria-Magnetic Compass-Chip Log-Conclusion  A mariner's compass. © Public Domain Davis, John. The Seaman's Secrets. London: Thomas Dawson, 1607. Source: National Library of Canada http://www.collectionscanada.gc.ca/explorers/h24-150.20-e.html#nlc001555
Website: Pathfinders and Passageways The Exploration of Canada |