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By an igneous injection, I do not mean that the fused rock owed its fluidity to dry heat. The celebrated researches of Sorby on the microscopical fluid cavities in the quartz of granite and quartz veins, have shown beyond a doubt that the vapour of water was present in comparatively large quantities when the quartz was solidifying.
Sorby, in making a careful examination of the chalk by means of thin sections and otherwise, observed, as Ehrenberg had done before him, that much of its granular basis possesses a definite form.
Sorby, in making a careful examination of the chalk by means of thin sections and otherwise, observed, as Ehrenberg had done before him, that much of its granular basis possesses a definite form.
From these facts and from the experiments and observations of Senarmont, Daubree, Delesse, Scheerer, Sorby, Sterry Hunt, and others, we are led to infer that when in the bowels of the earth there are large volumes of matter containing water and various acids intensely heated under enormous pressure, these subterranean fluid masses will gradually part with their heat by the escape of steam and various gases through fissures, producing hot springs; or by the passage of the same through the pores of the overlying and injected rocks.
By microscopic examination of minute crystals, and by other observations, Mr. Sorby has come to the conclusion that the absolute condensation of the slate rocks amounts upon an average to about one half their original volume. Most of the scales of mica occurring in certain slates examined by Mr.
I, their host, often waylay them and try to commune with them; but always they glide past me. And how gracefully they glide, these ghosts! It is a pleasure to watch them. It is a lesson in deportment. May they never be laid! Of all my household-pets, they are the dearest to me. I am Duke of Strathsporran and Cairngorm, Marquis of Sorby, and Earl Cairngorm, in the Peerage of Scotland.
As the boat drew up by the side of the Dripping Blade the renowned Sorby looked down over the side. He was a red-headed man; his long hair and beard dyed yellow in some places by the sun. He was grievous to look upon, and like to create in the mind of an imaginative person the image of a sun-burned devil on a holiday. "Good-day to you!
Sorby, in making a careful examination of the chalk by means of thin sections and otherwise, observed, as Ehrenberg had done before him, that much of its granular basis possesses a definite form.
"Oh! if Dickory were here," gasped Dame Charter, "he would turn the boat himself; he would never allow me to be taken among those awful wretches." Mr. Delaplaine said nothing. It was too late to expostulate, but he trembled as he sat. "I cannot turn back, my dear," said Bonnet, "even if I would, for the great Sorby is now on deck, and looking at us as we approach."
J. Gwyn, *Moseley, Professor H. N, *Ommaney, Admiral Sir E, Pengelly, W., Esq., Perkin, W. H., Esq., Prestwich, Professor, Sclater-Booth, The Right Hon. George, Sorby, Dr.
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