 | 1854 - 412 páginas
...Logan to be 14,570 feet. The middle part of this vast series of strata, having a thickness of 1400 feet, abounds in fossil forests of erect trees, together...Pictou, and Sir C. Lyell, in September last (1852) and among other results of their investigations, they obtained satisfactory proof that several sigillarise,... | |
 | 1853 - 396 páginas
...Mr Logan to be 14,570 feet. The middle part of this vast series of strata having a thickness of 1400 feet, abounds in fossil forests of erect trees, together...Pictou, and Sir C. Lyell in September last (1852), and among other results of their investigations they obtained satisfactory proof that several Sigillariae... | |
 | 1853 - 438 páginas
...Mr Logan to be 14,570 feet. The middle part of this vast series of strata having a thickness of 1400 feet, abounds in fossil forests of erect trees, together...coal-bearing strata were examined in detail by Mr J. "W. Dawson of Pictou, and Sir C. Lyell in September last (1852), and among other results of their... | |
 | 1854 - 412 páginas
...Logan to be 14,570 feet. The middle part of this vast series of strata, having a thickness of 1400 feet, abounds in fossil forests of erect trees, together....Pictou, and Sir C. Lyell, in September last (1852) and among other results of their investigations, they obtained satisfactory proof that several sigillariae,... | |
 | 1854 - 414 páginas
...Logan to be 14,570 feet. The middle part of this vast series of strata, having a thickness of 1400 feet, abounds in fossil forests of erect trees, together...Pictou, and Sir C. Lyell. in September last (1852) and among other results of their investigations, they obtained satisfactory proof that several sigillarias,... | |
 | Royal Institution of Great Britain - 1854 - 492 páginas
...examined in detail by Mr. JW Dawson of Pictou, and Sir C. Lyell in September last (1852), and among other results of their investigations they obtained...to the planes of stratification, were provided with stigmariae as roots. Such a relation between Sigillaria and Stigmaria had, it is true, been already... | |
| |
Logan, to be 14,570 feet. The middle part of this vast series of strata having a thickness of 1400 feet abounds in fossil forests of erect trees together with rootbeds, and thin seams of coal. These coal-bearing strata were examined in detail by Mr. JW... 