Note 1638 — Chapter VI · (continued 2)

Cf. also J. D. Whitney’s Climatic Changes. The present proportion of land to water is reckoned as four is to eleven. The ocean’s average depth is variously estimated at from eleven to thirteen times that of the average elevation of land above water, or as 11,000 or 13,000 feet is to 1,000 feet. The bulk of water on the globe is computed at thirty-six times the cubic measurement of the land above water (Ibid. 194, 209).