Show A of duplicate earth tile the edinburgh review thinks that tho the planet mars may juilly be considered a lund kind of duplicate cai caioli th it being endowed with land water cloud and air and snow accumulating around its poles in their respective seasons of winter if this lie be so BO the atmosphere of oc the planet is however much moro more rare than hall that of the earth so that it only exerts at the planets surface a pressure of about two pounds and a quarter to tile square inch the climate of mars is conceived from the small amount of snow that accumulates at the poles polea of the planet to bo be comparatively mild and the water is distributed into a very curious series of long parallel canal winch run out from the ocean basins to an extent in souto some places of and 1000 miles As is well known astronomers have hate succeeded in ill discovering since 1877 1874 two moons these being found to present a diameter of not more than six bis or seven niiles miles and one of them completing a revolution round the planet in a little more than seven hours D brooki yli ensle Engle |