. Thalassa; an essay on the depth, temperature, and currents of the ocean. e of the observation—not made for thefirst time, since it has attracted the attention of every student ofcomparative geography—that the principal land-masses, more orless combined into one great area of elevation, gravitate towardsthe North Pole as their common centre; while the differentoceanic basins, constituting one great area of depression,gather round the South Pole as their centre. If this obser-vation conveys any information beyond the familiar factthat there is more land in the northern and more water in thesou
. Thalassa; an essay on the depth, temperature, and currents of the ocean. e of the observation—not made for thefirst time, since it has attracted the attention of every student ofcomparative geography—that the principal land-masses, more orless combined into one great area of elevation, gravitate towardsthe North Pole as their common centre; while the differentoceanic basins, constituting one great area of depression,gather round the South Pole as their centre. If this obser-vation conveys any information beyond the familiar factthat there is more land in the northern and more water in thesouthern hemisphere, it means that the slow but unceasingchanges which take place in the distribution of land and waterobey a. general tendency to accumulate land in the northern andwater in the southern hemisphere. There are numerous indica- Diagram showing Decrease of Diamater ofRotation, from the Equator lo The pn ° __ 91 0° ^o° :? v30° 3 2D 7 i w ^ E ID/ o L c iama fer o\ Rotation r <— oen X < co £ oa: F, Fall of 1 Mile in 5 or a depth of 1000 Fms ._ 5 Naut. Miles from the Shore. Fall of 1 Mile in 10 Miles
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Keywords: ., bookauthorwild, bookcentury1800, bookdecade1870, booksubjectocean
