Proceedings of the Geologists' Association, Bind 2Geologists' Association, London., 1873 |
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abundant Association band Brachiopoda Bracklesham British Broc Busk Caradoc carbonic Carboniferous Limestone Chalk Chillesford cliff Coal Measures containing copper coprolites Coralline Cretaceous Cyrena D'Orb denudation deposits district Eocene EXCURSION fauna feet thick Finchley flint Foraminifera Forb formation forms fossils Gault genera genus Geological geologists Glacial gravel Hill Inferior Oolite Keuper Kimmeridge Clay lava layers Lingulella Llandeilo Llandovery London Clay Lower Greensand Ludlow M'Coy marine marls mass Members Mesozoic Middle Devonian Middle Eocene miles Millstone Grit Mont Müll Museum neighbourhood Nyst occur Orthida Paleozoic paper pebble bed Permian Phil Phill Pliocene portion Portsmouth Prestwich Professor Morris Purbeck range Red Crag remains Rhynchonella rocks sands Sandstone sandy Schl seen shales shells siliceous Silurian species specimens Spiriferida sponge strata surface Terebratula Terebratulidæ Tertiary Upper Devonian Upper Greensand Upper Llandovery Upware volcanic Wenlock Whitecliff Bay Wood دو وو
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Side 60 - Stood on my feet: about me round I saw Hill, dale, and shady woods, and sunny plains, And liquid lapse of murmuring streams; by these Creatures that lived and moved, and walked or flew; Birds on the branches warbling; ~a.ll things smiled; With fragrance and with joy my heart o'erflowed.
Side 15 - ... to a greasy paper we had brought our supper in, and it blazed up so suddenly that one of the Kanakas thought it a new jet opening at our feet, and ran off to some distance. Failing to arouse my companions by calling, I threw a handful of small stones at them, but without effect, and I had to climb down and shake them roughly. When they had got to the edge, the action had greatly diminished, and in a few minutes more the dark crust again covered the central portion, and we all went to sleep.
Side 51 - Britain, afad called Iktis. During the recess of the tide, the intervening space is left dry, and they carry over abundance of tin to this place in their carts.
Side 25 - Papin•s digester or other closed vessel, may be made red-hot, without expanding into vapour. " The moment, however, that the opening is made in the enclosing vessel (reducing the pressure to that of the atmosphere only), it flashes instantly into steam with explosive violence. " The same effect of course must take place in an imperfect liquid or paste composed of water, and any solid matter in mechanical suspension or mixture, such as flour, clay, sand, or any other granular substance.
Side 25 - Geyser-action to the crater of a volcano, where steam in a white-hot state under enormous pressure must exist, we can readily see the explanation of the rhythmical explosions which some volcanos constantly keep up. So long ago as 1825, Mr. Scrope arrived at the conclusion that the mobility of the solid component particles of liquid lava was not due to the mass being in a state of molecular fusion —in which condition it never occurs subaerially — but to the presence of an interstitial fluid disseminated...
Side 322 - FGS That the thanks of the Society be given to the Officers for their services during the Session that has now closed. NOTICE. SESSION 1866-67.
Side 51 - Britain ; for at full tide the intervening, passage being overflowed, they appear islands ; but when the sea retires, a large space is left dry, and they are seen as peninsulas...
Side 22 - Principles," vol. i., p. 398.) What is the cause of thermal springs ? Water descending to deep levels in the strata meets at some point with steam at a high temperature, which, being converted into water by contact, raises the temperature of the water, which in turn, as the store of heat is accumulated, rises by rents and fissures to the surface in the form of thermal springs. There seems no doubt that hot springs have a direct connexion with volcanos.
Side 19 - East and quenched the light there, and at length produced a darkness so dense that the windows in the rooms could not be discerned. A shower of ashes descended, under which the tree branches bent and broke. Whence came these ashes ? From the direction of the wind we should infer that they came from the Peak of the Azores ; they came, however, from the volcano of Morne Garou, in St.
Side 14 - I awoke with a start, and found myself in the midst of a shower of fiery drops, some of which were burning my blanket. I shook myself and jumped back, looking at my watch to note the time, for I thought a great eruption at hand, and then stood gazing at the strange scene for some time before I thought of calling my companions. " The whole surface of the lake had risen several feet, and was boiling violently, and dashing against the sides, throwing the redhot spray high over the banks, causing the...