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Ammonites appear Birdlip Bored bed Bourton-on-the-Water Brachiopoda brook trout Buckm Chalford Clypeus Clypeus Grit coins colour Cotteswold Cotteswold Club Crickley cross deposit district Dr Wright drainage area Dundry Eels eggs experiments feet felspar female fertile fish flow fold fossils Freestone fresh water Fuller's Earth gallons per diem gayal genus Geol Gloucester granite granulite hatched heat Hill Howietoun hybrid inches incubation Inferior Oolite Leckhampton Limestone Linn Lizard Lochleven Lochleven trout Lower Coral Bed male Marl marly miles milt minute Nailsworth Nerincea Notgrove observed obtained occur Oolite Marl Orthoclase paper Pea-grit pebbles Pisolite pond portion probably Professor quarry quartz remarkable reptile Rhynchonella river River Frome rocks Ryeford salmon sands seen Selsley Severn shell shewed snake species specimens springs stone strata stream surface temperature Terebratula Thames thickness tray Trigonia Grit Upper Freestone Upper Lias volcano whorls winter Witc Witchell young zone
Seite 226 - To form some conception of the degree of coarse-grainedness indicated by this conclusion, imagine a globe of water or glass, as large as a football,1 to be magnified up to the size of the earth, each constituent molecule being magnified in the same proportion. The magnified structure would be more coarse grained than a heap of small shot, but probably less coarsegrained than a heap of footballs.
Seite 133 - At last, on the 29th of the same month, about two o'clock in the night, the earth opened near the lake, and discovered a horrid mouth, from which were vomited furiously smoke, fire, stones, and mud, composed of ashes, making at the time of its opening a noise like the loudest thunder.
Seite 132 - When we first reach it the probabilities are that the surface of the lake is coated over with a black, solidified crust, showing a rim of fire all around its edge. At numerous points at the edge of the crust jets of fire are seen spouting upwards, throwing up a spray of glowing lava drops and emitting a dull, simmering sound. The heat for the time being is not intense. Now and then a fountain breaks out in the middle of the lake and boils feebly for a few minutes.
Seite 170 - And, for that entent, the same nyght they pight them in a fielde, in a close even at the townes ende ; the towne, and the abbey, at theyr backs ; afore them, and upon every hand of them, fowle lanes, and depe dikes, and many hedges, with hylls, and valleys, a ryght evill place to approche, as cowlde well have bene devysed.
Seite 220 - I must admit, that in the case of coarse-grained, highly quartzose granites there is so very little evidence of igneous fusion, and such overwhelming proof ot the action of water, that it is impossible to draw a line between them and those veins where, in all probability, mica, felspar, and quartz have been deposited from solution in water, without there being any definite genuine igneous fusion like that in the case of furnace slags or erupted lavas.
Seite 218 - Fah.), when the alcohol occupies just half the volume of the tube ; if the tube is more than half filled with alcohol, it bursts when heated. A glass tube one-third filled with water becomes opaque when heated, and bursts after a few seconds. If this chemical action of the water on the glass be diminished by the addition of a little carbonate of soda, the transparency of the glass will be much...
Seite 133 - Now this eruption lasted two nights and two days without intermission, though, it is true, not always with the same force; the third day the eruption ceased, and I went up with many people to the top of the new hill, and saw down into its mouth, which was a round cavity about a quarter of a mile in circumference, in the middle of which, the stones which had fallen were boiling up, just as a caldron of water boils on the fire.
Seite 226 - The four lines of argument which I have now indicated lead all to substantially the same estimate of the dimensions of molecular structure. Jointly they established, with what we cannot but regard as a very high degree of probability, the conclusion that, in any ordinary liquid, transparent solid, or seemingly opaque solid, the mean distance between the centres of contiguous molecules is less than the...
Seite 14 - Of three specimens from an inch and a quarter to an inch and a half in length...