Abstract
THE DOUBLING OF THE CANALS ON MARS.—The origin of the doubling of the canals visible on the surface of the planet Mars has again come to the front, and this time M. Antoniadi has put forward an explanation. His suggestion is that the doubling is only a phenomenon caused probably by the eye of the observer; in fact, it is the result of slight focussing errors when observing these markings.
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Our Astronomical Column. Nature 57, 568 (1898). https://doi.org/10.1038/057568a0
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DOI: https://doi.org/10.1038/057568a0