Transcriber's note: The cover, other than using a photograph from this book,was created by transcriber and placed into the Public Domain.
THE WRIGHT AEROPLANE IN FRANCE IN 1908.
It will be seen that there are two passengers on the aeroplane, one being Mr.Wilbur Wright, the other a pupil.
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EVERY-DAY SCIENCE
BY
HENRY SMITH WILLIAMS, M.D., LL.D.
ASSISTED BY
EDWARD H. WILLIAMS, M.D.
VOLUME VII.
THE CONQUEST OF TIME AND SPACE
ILLUSTRATED
NEW YORK AND LONDON
THE GOODHUE COMPANY
PUBLISHERS · MDCCCCX
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Copyright, 1910, by The Goodhue Co.
All rights reserved
iii
 CONTENTS
CHAPTER I
THE CONQUEST OF THE ZONES
Geographical knowledge of the ancient Egyptians, p. 5—Themariner's compass, p. 7—Reference to the thirty-two points ofthe compass by Chaucer, p. 9—Halley's observations on thechanges in the direction of the compass in a century, p. 10—Deviationof the compass, p. 11—The voyage of the Carnegie, thenon-magnetic ship, p. 12—The "dip of the needle" first observedby Robert Norman, p. 13—The modern compass invented byLord Kelvin, p. 14—Sailing by dead reckoning, p. 14—The inventionof the "log," p. 15—The modern log, p. 17—The developmentof the sextant, p. 18—The astrolabe, p. 19—The quadrant inventedby Hadley, p. 20—The perfected sextant, p. 21—Perfecting thechronometer, p. 23—The timepieces invented by the Britishcarpenter, John Harrison, p. 25—The prize won by Harrison, p. 27—Findingtime without a chronometer, p. 28—The NauticalAlmanac, p. 30—Ascertaining the ship's longitude, p. 31—Difficultiesof "taking the sun" at noon, p. 33—Measuring a degree oflatitude, p. 34—The obs                        
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