 | Geological Society of London - 1850 - 848 pagina’s
...periods. By consulting the ' Memoirs of the Geological Survey of Great Britain,' you will learn that in Wales, and the contiguous parts of England, a maximum...six miles), of carboniferous, Devonian and Silurian beds, has been measured, the whole formed whilst the bed of the sea was continuously and tranquilly... | |
 | 1851 - 406 pagina’s
...periods. By consulting the " Memoirs of the Geological Survey of Great Britain," you will learn that in "Wales, and the contiguous parts of England, a...six miles), of carboniferous, Devonian and Silurian beds, has been measured, the whole formed whilst the bed of the sea was continuously and tranquilly... | |
 | 1851 - 438 pagina’s
...periods. By consulting the " Memoirs of the Geological Survey of Great Britain," you will learn that in Wales, and the contiguous parts of England, a maximum...six miles), of carboniferous, Devonian and Silurian beds, has been measured, the whole formed whilst the bed of the sea was continuously and tranquilly... | |
 | Sir Charles Lyell - 1851 - 602 pagina’s
...of several hundred, much less several thousand feet. When some of the ancient marine formations are described in the sequel, it will appear that their structure and organic contents point to the conclusion, that the floor of the ocean was slowly sinking at the time of their origin.... | |
 | Sir Charles Lyell - 1852 - 570 pagina’s
...of several hundred, much less several thousand feet. When some of the ancient marine formations are described in the sequel, it will appear that their structure and organic contents point to the conclusion, that the floor of the ocean was slowly sinking at the time of their origin.... | |
 | Geological Society of London - 1850 - 738 pagina’s
...periods. By consulting the ' Memoirs of the Geological Survey of Great Britain,' you will learn that in Wales, and the contiguous parts of England, a maximum...six miles), of carboniferous, Devonian and Silurian beds, has been measured, the whole formed whilst the bed of the sea was continuously and tranquilly... | |
| |
Britain,' you will learn that in Wales, and the contiguous parts of England, a maximum thickness of 32,000 feet (more than six miles), of carboniferous, Devonian and Silurian beds, has been measured, the whole formed whilst the bed of the sea was continuously... 