 | 1863 - 568 páginas
...thus venture to calculate the age of the peat that lies below. But — Lyell adds — the obtained " rate of increase would demand so many tens of thousands...hesitate before adopting it as a chronometric scale." In other words this calculation is utterly worthless, even on Lyell's own admission ; yet this is all... | |
 | John Kirk - 1866 - 272 páginas
...diameter, this Frenchman, " allowing fourteen hundred years for the growth of superincumbent matter," ' ' calculated that the thickness gained in a hundred...years would be no more than three French centimetres," that is about an inch and a fifth! This frightens even Sir Charles, and he gravely says — " We must... | |
 | James Brodie - 1867 - 132 páginas
...the shape of which must have prevented them from sinking through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent...than three French centimetres. This rate of increase requires so many tens of thousands of years for the formation of the entire thickness of thirty feet,... | |
 | Henry Allon - 1863 - 622 páginas
...fixing its rate of progress at three centimetres in a century. But this computation, he observes, ' would demand so many tens of thousands of ' years...hesitate before adopting it as a chronometric ' scale.' That peat does not always require such immense periods for its production may be gathered from the... | |
 | Ebenezer Burgess - 1871 - 444 páginas
...which must have prevented them from sinking or penetrating through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent...years would be no more than three French centimetres (1.17 inches). This rate of increase would demand many tens of thousands of years (30,000) for the... | |
 | Ebenezer Burgess - 1871 - 510 páginas
...which must have prevented them from sinking or penetrating through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent...matter, he calculated that the thickness gained in a Jiundred years would be no more than three French centimetres (1.17 inches). This rate of increase... | |
 | Lucius Edwin Smith, Henry Griggs Weston - 1871 - 528 páginas
...valley. But from this long outlook into the past, even Lyell himself shrinks. He says (Ant. Ill) : "This rate of increase would demand so many tens of thousands of years, that we hesitate before adopting it as a chronometric scale." Not only may we hesitate, as Lyell advises,... | |
 | Sir Charles Lyell - 1873 - 606 páginas
...which must have prevented them from sinking or penetrating through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent...years would be no more than three -French centimetres, or about 1*2 English inches.* This rate of increase would demand so many thousands of years for -the... | |
 | John Wells Foster - 1874 - 434 páginas
...the shape of which must have prevented them from sinking through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent...years would be no more than three French centimetres, say about three English inches. " This rate of increase," observes Sir Charles, " would demand so many... | |
 | Charles Rau - 1876 - 182 páginas
...the shape of which must have prevented them from sinking through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent...years would be no more than three French centimetres, or about nine-eighths of an English inch. "This rate of increase," says Sir Charles Lyell, from whom... | |
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... through the underlying peat. Allowing about fourteen centuries for the growth of the superincumbent vegetable matter, he calculated that the thickness gained in a hundred years would be no more than three French centimetres. This rate of increase... 
