The call of the stars; a popular introduction to a knowledge of the starry skies with their romance and legend . urishes there is not positively known,and may never be known. As to the canali themselves,the belief most generally held by astronomers is thatthey are not true canals, but are due to cracks or cleftsin the Martian surface, such as might be made by the sides of the cracks or clefts are ribbons ofvegetation, nourished by the water-vapour escaping fromthem, and these are the dark-greenish streaks, vegetalcanals, so to speak, which are visible in the addition
The call of the stars; a popular introduction to a knowledge of the starry skies with their romance and legend . urishes there is not positively known,and may never be known. As to the canali themselves,the belief most generally held by astronomers is thatthey are not true canals, but are due to cracks or cleftsin the Martian surface, such as might be made by the sides of the cracks or clefts are ribbons ofvegetation, nourished by the water-vapour escaping fromthem, and these are the dark-greenish streaks, vegetalcanals, so to speak, which are visible in the addition to the canali observed by Schiaparelli,Lowell and his assistants at the famous Lowell Observa-tory at Flagstaff (6800 ft.), Arizona, have found manyso-called canals, which differ radically from the mark-ings observed by the Italian astronomer. Lowellspeaks of these streaks as being extremely narrow, andof uniform width from beginning to end, and as forminga complete network over the Martian surface. Nearlyseven hundred of the more noticeable of these mys-terious linelike markings have been catalogued, about. Lowell Observatory Plate XXXV. A Map of the Planet Mars (The image is inverted as in astronomical telescopes. The SyrtisMajor or Hour-glass Sea, usually the most conspicuous object on thered planet, a white polar cap, several oases, and a large number ofthe famous so-called canals, some of which are doubled, are wellrepresented here.) Mars and the Planetoids 373 sixty of which are described as doubled duplicated canals, it is said, appear to their bestadvantage in the late Martian summer and fall of thenorthern hemisphere. The small so-called canals areestimated by Lowell to have an actual width of two orthree miles, and the larger ones a width of from fifteento twenty miles. While many observers have seenand mapped numerous lines and markings, compara-tively few have been able to see the pencil-like networkof lines as mapped at the Lowell Observatory. Theelegant
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