Mars and Its Canals is a public-domain classic of science by Percival Lowell.
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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
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
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
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
LIST OF ILLUSTRATIONS
PLATES
MARS’ HILL Frontispiece
PAGE
THE HERMITAGE 8
THE SAN FRANCISCO PEAKS 18
MARTIAN MAPS BY:
I. BEER AND MAEDLER. 1840 26
II. KAISER. 1864 26
III. FLAMMARION (RÉSUMÉ). 1876 27
IV. GREEN. 1877 27
V. SCHIAPARELLI. 1877 28
VI. SCHIAPARELLI. 1879 28
VII. SCHIAPARELLI. 1881 29
VIII. SCHIAPARELLI. 1884 29
IX. LOWELL. 1894 30
X. LOWELL. 1896 30
XI. LOWELL. 1901 31
XII. LOWELL. 1905 31
SOUTH POLAR CAP. 1905 42
NORTH POLAR CAP. 1905 44
MARE ERYTHRAEUM, MARTIAN DATE, DECEMBER 30 120
MARE ERYTHRAEUM, MARTIAN DATE, JANUARY 16 122
MARE ERYTHRAEUM, MARTIAN DATE, FEBRUARY 1 124
MARE ERYTHRAEUM, MARTIAN DATE, FEBRUARY 21 126
MARS, ON MERCATOR’S PROJECTION 384
CUTS APPEARING IN TEXT
SOUTH POLAR CAP IN WINTER 56
HELLAS IN WINTER 59
WHITE SOUTH OF NECTAR AND SOLIS LACUS 59
NORTHERN CAP HOODED WITH VAPOR 64
NORTHERN CAP UNMASKED 65
DEPOSITION OF FROST 70
FIRST NORTHERN SNOW 72
WHITE IN ELYSIUM 75
WHITE IN THE PONS HECTORIS 78
PROJECTION ON TERMINATOR 101
LINES IN DARK AREA 117
MAP OF NORTH AMERICA AT THE CLOSE OF ARCHÆAN TIME 132
NORTH AMERICA AT OPENING OF UPPER SILURIAN PERIOD 134
MAP OF NORTH AMERICA AFTER THE APPALACHIAN REVOLUTION 135
NORTH AMERICA IN THE CRETACEOUS PERIOD 136
NORTH AMERICA, SHOWING THE PARTS UNDER WATER IN THE TERTIARY ERA 137
EARTH’S DESERT AREAS, WESTERN HEMISPHERE 156
EARTH’S DESERT AREAS, EASTERN HEMISPHERE 157
SHOWING THE EUMENIDES-ORCUS 183
MARTIAN DOUBLES 206
MARTIAN DOUBLES 207
MOUTHS OF EUPHRATES AND PHISON. JUNE, 1903 219
PECULIAR DEVELOPMENT OF THE GANGES 228
DJIHOUN, THE NARROWEST DOUBLE 229
THE SABAEUS SINUS, EMBOUCHURE FOR THE DOUBLE HIDDEKEL AND GIHON 232
THE PROPONTIS, 1905 247
FONS IMMORTALIS, JUNE 19 254
UTOPIA REGIO. 1903 256
ASCRAEUS LUCUS AND GIGAS. MARCH 2, 1903 258
PECULIAR ASSOCIATION OF THE LUCI ISMENII WITH DOUBLE CANALS 260
LUCUS ISMENIUS. MARCH, 1903 262
SHOWING SEASONAL CHANGE. I 285
SHOWING SEASONAL CHANGE. II 285
MEAN CANAL CARTOUCHES 298
SHOWING DEVELOPMENT OF THE BRONTES:
I. FEBRUARY 25 306
II. MARCH 30 307
III. APRIL 3 307
IV. MAY 4 308
V. MAY 7 308
VI. JULY 18 309
CARTOUCHES OF THE BRONTES 311
AMENTHES ALONE IN FEBRUARY 319
AMENTHES FEEBLER AND STILL ALONE IN MARCH 319
APPEARANCE OF THOTH WITH TRITON AND CURVED NEPENTHES. AMENTHES VANISHED, APRIL 20 320
ADVENT OF THE LUCUS MOERIS. MAY 29 321
AMENTHES WITH THOTH-NEPENTHES. JULY 322
CARTOUCHES OF AMENTHES, THOTH, AND THEIR COMBINATION 323
PHENOLOGY CURVES—EARTH 342
PHENOLOGY CURVES—MARS 343
NATURAL FEATURES
MARS AND ITS CANALS
CHAPTER I
ON EXPLORATION
From time immemorial travel and discovery have called with strange insistence to him who, wondering on the world, felt adventure in his veins. The leaving familiar sights and faces to push forth into the unknown has with magnetic force drawn the bold to great endeavor and fired the thought of those who stayed at home. Spur to enterprise since man first was, this spirit has urged him over the habitable globe. Linked in part to mere matter of support it led the more daring of the Aryans to quit the shade of their beech trees, reposeful as that umbrage may have been, and wander into Central Asia, so to perplex philologists into believing them to have originated there; it lured Columbus across the waste of waters and caused his son to have carved upon his tomb that ringing couplet of which the simple grandeur still stirs the blood:—
Á CASTILLA Y Á LEON NUEVO MONDO DIÓ COLON;
(To Castile and Leon beyond the wave Another world Columbus gave;)
it drove the early voyagers into the heart of the vast wilderness, there to endure all hardship so that they might come where their kind had never stood before; and now it points man to the pole.
Something of the selfsame spirit finds a farther field today outside the confines of our traversable earth. Science which has caused the world to shrink and dwindle has been no less busy bringing near what in the past seemed inaccessibly remote. Beyond our earth man’s penetration has found it possible to pierce, and in its widening circle of research has latterly been made aware of another world of strange enticement across the depths of space. Planetary distances, not mundane ones, are here concerned, and the globe to be explored, though akin to, is yet very different from, our own. This other world is the planet Mars. Sundered from us by the ocean of ether, a fellow-member of our own community of matter there makes its circuit of the sun upon whose face features show which stamp it as cognate to that on which we live. In spite of the millions of miles of intervening matterless void, upon it markings can be made out that distantly resemble our earth’s topography and grow increasingly suggestive as vision shapes them better; and yet among the seemingly familiar reveal aspects which are completely strange. But more than this: over the face of it sweep changes that show it to be not a dead but a living world, like ours in this, and luring curiosity by details unknown here to further exploration of its unfamiliar ground.
To observe Mars is to embark upon this enterprise; not in body but in mind. Though parted by a gulf more impassable than any sea, the telescope lets us traverse what otherwise had been barred and lands us at last above the shores we went forth to seek. Real the journey is, though incorporeal in kind. Since the seeing strange sights is the essence of all far wanderings, it is as truly travel so the eye arrive as if the body kept it company. Indeed, sight is our only far viatic sense. Touch and taste both hang on contact, smell stands indebted to the near and even hearing waits on ponderable matter where sound soon dissipates away; only sight soars untrammeled of the grosser adjunct of the flesh to penetrate what were otherwise unfathomable space.
What the voyager thus finds himself envisaging shares by that very fact in the expansion of the sense that brought him there. No longer tied by means of transport to seas his sails may compass or lands his feet may tread, the traveler reaches a goal removed in kind from his own habitat. He proves to have adventured, not into unknown parts of a known world, but into one new to him in its entirety. In extent alone he surveys what dwarfs the explorer’s conquests on Earth. But size is the least of the surprises there in store for him. What confronts his gaze finds commonly no counterpart on Earth. His previous knowledge stands him in scant stead. For he faces what is so removed from every day experience that analogy no longer offers itself with safety as a guide. He must build up new conceptions from fresh data and slowly proceed to deduce the meaning they may contain. Science alone can help him to interpretation of what he finds, and above all must he wean himself from human prejudice and earthbound limitation. For he deals here with ultramundane things. With just enough of cosmogony in common to make decipherment not despairable this world is yet so different from the one he personally knows as to whet curiosity at every turn. He is permitted to perceive what piques inquiry and by patient adding of point to point promises at last a rational result.
Like mundane exploration, it is arduous too; ad astra per aspera is here literally true. For it is a journey not devoid of hardship and discomfort by the way. Its starting-point preludes as much. To get conditions proper for his work the explorer must forego the haunts of men and even those terrestrial spots found by them most habitable. Astronomy now demands bodily abstraction of its devotee. Its deities are gods that veil themselves amid man-crowded marts and impose withdrawal and seclusion for the prosecution of their cult as much as any worshiped for other reason in more primeval times. To see into the beyond requires purity; in the medium now as formerly in the man. As little air as may be and that only of the best is obligatory to his enterprise, and the securing it makes him perforce a hermit from his kind. He must abandon cities and forego plains. Only in places raised above and aloof from men can he profitably pursue his search, places where nature never meant him to dwell and admonishes him of the fact by sundry hints of a more or less distressing character. To stand a mile and a half nearer the stars is not to stand immune.
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