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" He also stated that fragments of the " black stone" which fell from the summit of the cliff, a pile of which, d, fig. 16, lay at its base, were often frozen into the ice, and moved along with it. I then examined these fallen blocks of amygdaloid scattered... "
Travels in North America: With Geological Observations on the United States ... - Pagina 127
door Sir Charles Lyell - 1845 - 272 pagina’s
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Travels in North America, in the Years 1841-2: With Geological ..., Volumes 1-2

Sir Charles Lyell - 1845
...XXIII. or corresponding to that of the shore at this point. After walking about a quarter of a mile, I found another set of similar furrows, having the...mechanical power to groove the ledge of soft sandstone. is common use for large sheets of ice several acres in area, which are sometimes floated off from the...
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The North American Review, Volume 61

Jared Sparks, Edward Everett, James Russell Lowell, Henry Cabot Lodge - 1845
...stated that fragments of the ' black stone ' which fell from the summit of the cliff, a pile of which lay at its base, were often frozen into the ice, and...have furnished sufficient pressure and mechanical powerto groove the ledge of soft sandstone." — Vol. n., pp. 144- 146. We have touched only upon some...
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The North American Review, Volume 61

Jared Sparks, Edward Everett, Henry Cabot Lodge, James Russell Lowell - 1845
...cliff, a pile of which lay at its base, were often frozen into the ice, and moved along with it. 1 then examined these fallen blocks of amygdaloid scattered...mechanical power to groove the ledge of soft sandstone." — Vol. it., pp. 144- 146. We have touched only upon some of the simpler of the geological matters...
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Works

Hugh Miller - 1865
...— a pile of which lay at its base — were often frozen into the ice, and moved along with it. And I have no doubt that the hardness of these gravers, firmly fixed in masses of ice, which, though only fifteen feet thick, are often of considerable horizontal extent, has furnished sufficient...
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Sketch-book of Popular Geology

Hugh Miller - 1869 - 356 pagina’s
...a pile of which lay at its base, — were often frozen' into the ice, and moved along with it. And I have no doubt that the hardness of these gravers, firmly fixed in masses of ice, which, though only fifteen feet thick, are often of considerable horizontal extent, has furnished sufficient...
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The Ice Age in North America, and Its Bearings Upon the Antiquity of Man ...

George Frederick Wright - 1889 - 622 pagina’s
...of amygdaloid scattered around me, and observed in them numerous geodes coated with quartz-crystals. I have no doubt that the hardness of these gravers,...mechanical power to groove the ledge of soft sandstone.* Stones are also striated by other agencies than moving ice. Extensive avalanches and land-slides furnish...
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The Ice Age in North America and Its Bearings Upon the Antiquity of Man ...

George Frederick Wright, Warren Upham - 1889 - 622 pagina’s
...of amygdaloid scattered around me, and observed in them numerous geodes coated with quartz-crystals. I have no doubt that the hardness of these gravers,...ice, which, although only fifteen feet thick, are of ten of considerable horizontal extent, have furnished sufficient pressure and mechanical power to...
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The Glacial Nightmare and the Flood: A Second Appeal to Common ..., Volume 1

Sir Henry Hoyle Howorth - 1893 - 920 pagina’s
...packed ice in which fragments of hard stone coated with quartz crystals were frozen ; and he adds, " I have no doubt that the hardness of these gravers,...pressure and mechanical power to groove the ledge of soft sandstone.7 In our speculations, therefore, on the carrying power of ice, we ought always to remember...
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The Ice Age in North America: And Its Bearings Upon the Antiquity of Man

George Frederick Wright - 1911 - 763 pagina’s
...of amygdaloid scattered around me, and observed in them numerous geodes coated with quartz-crystals. I have no doubt that the hardness of these gravers,...ice, which, although only fifteen feet thick, are of ten of considerable horizontal extent, have furnished sufficient pressure and mechanical power to...
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Bulletin, Nummers 194-196

1917
...examined these fallen blocks of amygdaloid scattered round me, and observed in them numerous geodcs coated with quartz crystals. I have no doubt that...firmly fixed in masses of ice, which, although only IS feet thick, are often of considerable horizontal extent, have furnished sufficient pressure and...
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