Chapter VI
Reading edition
A NEW ESTIMATE OF THE TEMPERATURE OF MARS, —Langley's determination of lunar heat —Rapid loss of heat by radiation on the earth —Rapid loss of heat on moon during eclipse —Sir George Darwin's theory of the moon's origin —Very's researches on the moon's temperature —Application of these results to the case of Mars —Cause of great difference of temperatures of earth and moon —Special features of Mars influencing its temperature —Further criticism of Mr. Lowell's article —Very low temperature of arctic regions on Mars.