the general result of the comparison of the soils of various districts with the rocks on which they immediately rest, has been that in almost every country the soils have as close a resemblance to the rocks beneath them, as the loose earth derived from... Elements of Agricultural Chemistry and Geology - Página 69por James Finlay Weir Johnston - 1842 - 249 páginasVisualização integral - Acerca deste livro
| 1871 - 602 páginas
...more or less stiff clay ; if a limestone, it is more or less calcareous ; and if the rock consists of any peculiar mixture of those three substances,...rocks ; that there was a time when these rocks were naked and without any covering of loose materials ; and that the accumulation of soil has been the... | |
| 1850 - 512 páginas
...of the comparison of the soils of various districts with the rocks on which they immediately rest, has been that in almost every country the soils have...rocks — that there was a time when these rocks were naked, and without any covering of loose materials, and that the accumulation of soil has been the... | |
| Henry Woodward - 1884 - 784 páginas
...country the soils, as a whole, have a resemblance to the rocks beneath them, similar to that which the loose earth derived from the crumbling of a rock...formed by the crumbling or decay of the solid rocks. .... The cause of the diversity of soils in different districts, therefore, is no longer obscure. If... | |
| Henry Woodward - 1884 - 640 páginas
...country the soils, as a whole, have a resemblance to the rocks beneath them, similar to that which the loose earth derived from the crumbling of a rock...formed by the crumbling or decay of the solid rocks. .... The cause of the diversity of soils in different districts, therefore, is no longer obscure. If... | |
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