. The earth and its inhabitants .. . [XI Under 4 Iscbes. 4 to 20 nches. 20 to 40 Inches. 40 to GO Inches. 60 to 80 Inches. 80 Tnchea and upwards. 1,200 Miles. planets an aspect perhaps analogous to that offered to our gaze by the parallel cloudy zones round about Jupiter. These different zones of moisture, whose limits coincide in several places with the isothermal lines, are develoiDcd across the continent with sufficient regularity to enable M. Chavanne to map them out. Africa is more sharply distributed in distinct regions by its deserts than it could have been by broad arms of the sea.

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