On the Influence of Geological Changes on the Earth's Axis of Rotation. Received October 13, - Read November 23, 1876.

(London, Taylor and Francis, 1878). 4to. No wrappers as extracted from "Philosophical Transactions" 1877, Vol. 167 - Part I. Pp. 271-312. 3 leaves with minor brownspots to upper margin, otherwise fine and clean.

First appearance of an importent paper by the "Father of Geophysics". "Darwin's paper "On the Influence..." (the paper offered), ...marked the beginning of his investigations of essentially geophysical problems.This work was directly inspired by Lord kelvin, whose great interest in the young Darwin may be said to have been the chief influence in his decision to make science his career

"Darwin's most significant contribution to the history of science lies in his pioneering work in the application of detailled dynamical analysis to cosmological and geological problems. That many of his conclusions are now out of date should in no way diminish the historical interest in his experiments, nor the importent service thet he rendered cosmogony by the example he gave of putting various hypotheses to the test of actual calculations. Darwin's method remains a milestone in the development of cosmogony, and subsequent investigators have favored it over the merely qualitative arguments prevalent until that time."(DSB).

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