Note 29 — The Establishment of Solar Climates.

The Columbian Lava Plains of North America aggregate some 150,000 square miles; the Deccan Lava Plains of India cover an almost unbroken plain 200,000 square miles in area. No Geologists ascribe these lava overflows to an earlier date than the Tertiary; the author could find no reason to assign the Columbian Lava Plain to so early a period, and strong reasons to assign the continuance of the flow to the later Quaternary; of the Deccan Plain he is unable to speak. (See Trans. Geological Society of Australasia, vol. i, part vi, p. 162, note. Also Mining and Scientific Press, Feb. 6th, 1892.)