Every-day Science: Volume VII. The Conquest of Time and Space (Illustrated)

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—The voyage of the Carnegie, the non-magnetic ship, p. 12—The "dip of the needle" first observed by Robert Norman, p. 13—The modern compass invented by Lord Kelvin, p. 14—Sailing by dead reckoning, p. 14—The invention of the "...