CHAPTER V.

REASON WHY THE SOUTHERN HEMISPHERE IS COLDER THAN THE NORTHERN.

Adhémar’s Explanation.—Adhémar’s Theory founded upon a physical

Mistake in regard to Radiation.—Professor J. D. Forbes on

Underground Temperature.—Generally accepted Explanation.—Low

Temperature of Southern Hemisphere attributed to

Preponderance of Sea.—Heat transferred from Southern to

Northern Hemisphere by Ocean-current the true Explanation.—A

large Portion of the Heat of the Gulf-stream derived from the

Southern Hemisphere 81

Climate and Time in Their Geological Relations A Theory of Secular Changes of the Earth's Climate · 第 5 / 41 章