Category: History - Modern (1750+)
Every-day Science: Volume 7. The Conquest of Time and Space
Geographical knowledge of the ancient Egyptians, p. 5--The mariner's compass, p. 7--Reference to the thirty-two points of the compass by Chaucer, p. 9--Halley's observations on the changes in the direction of the compass in a century, p. 10--Deviation of the compass, p. 11--Th...