Penny Blood: Serial Sensation and Working-Class Entertainment — page 308: what you’re looking at

Machine-transcribed from the original scan — historical spelling and the odd misread are preserved.

APPENDIX. Mr G. H. Darwin “On the stresses caused by continents and mountains "—his argument for solidity met by Sir G. B Airy’s explanation—M. Roche “On the constitution of the interior of the earth” —his theory, though in accord- ance with Geology, requires fuller statement than is yet published. Notices of two yet unpublished memoirs have lately ap- peaied bearing on the Physics of the Earth’s Crust. Mr G. H. Darwin read a paper in June, 1881, before the Royal Society, “On the stresses caused in the interior of the earth by the weight of Continents and Mountains*.” It is based upon the hypothesis that “the existence of dry land proves that the earth’s surface is not a figure of equilibrium appropriate for the diurnal rotation. Hence the interior of the earth must be in a state of stress, and as the land does not sink in, nor the sea-bed rise up, the materials of which the earth is made must be strorg enough to bear this stress.’ After describing the nature of the investigation, he concludes that it “ must be regarded as confirmatory of Sir William Thomson’s view, that the earth is solid nearly throughout its whole mass. According to this view, the lava which issues from volcanoes arises from the melting of solid rock, existing at a very high temperature at points where there is a diminution of pressure’, or else from com- paratively small vesicles of rock in a molten condition.” 1 ‘¢Proc. Royal Soc.” Vol. xxx11. p. 482. 1881. / 2 See the Author’s paper on “The Elevation of Mountains by Lateral Pressure.” Trans. Cambridge Phil. Soc., Vol. xt. Pt. 111. p. 504. 1871. CONNEC OOO @ (CO)