CONTENTS

PAGE
Preface[vii]
[PART I]
NATURAL FEATURES
CHAPTER
I.On Exploration[3]
II.A Departure-point[12]
III.A Bird’s-eye View of Past Martian Discovery[20]
IV.The Polar Caps[32]
V.Behavior of the Polar Caps[41]
VI.Martian Polar Expeditions[54]
VII.White Spots[73]
VIII.Climate and Weather[82]
IX.Mountains and Cloud[96]
X.The Blue-green Areas[108]
XI.Vegetation[119]
XII.Terraqueousness and Terrestriality[128]
XIII.The Reddish-ochre Tracts[148]
XIV.Summary[159]
[PART II]
NON-NATURAL FEATURES
XV.The Canals[173]
XVI.Their System[184]
XVII.Gemination of the Canals[192]
I.The Diplopic Theory[196]
II.The Interference Theory[201]
III.The Illusion Theory[202]

XVIII.
The Double Canals[204]
XIX.Canals in the Dark Regions[243]
XX.Oases[249]
XXI.Carets on the Borders of the Great Diaphragm[265]
XXII.The Canals Photographed[271]
[PART III]
THE CANALS IN ACTION
XXIII.Canals: Kinematic[281]
XXIV.Canal Development Individually Instanced[304]
XXV.Hibernation of the Canals[313]
XXVI.Arctic Canals and Polar Rifts[325]
XXVII.Oases: Kinematic[330]
[PART IV]
EXPLANATION
XXVIII.Constitution of the Canals and Oases[337]
XXIX.Life[348]
XXX.Evidence[360]
XXXI.The Husbanding of Water[366]
XXXII.Conclusion[376]
INDEX[385]