But others have, whose eyes have been no better than yours," I replied. " However, something besides eyes seems needful to constitute an accurate observer of nature. It appears that the sap-vessels, just under the bark, which are in a soft, spungy state... The Forest, Or, Rambles in the Woodland - Página 28por Jefferys Taylor - 1832 - 208 páginasVista completa - Acerca de este libro
| Philip Miller - 1835 - 742 páginas
...and by counting their number, it will give the term of its duration. It appears that the sap-vessels, under the bark, which are in a soft spungy state during...annual additions are in general clearly discernible. In looking at the end of a piece of timber, or the arm of a tree newly cut, the parts within two or... | |
| Jefferys TAYLOR - 1835 - 324 páginas
...observer of nature. It appears that the sap-vessels, just under the bark, which are in a soft, spongy state during the summer, harden in the winter, and...circle of vessels, pushing the bark outwards ; and this, in its turn, changes into the close-grained proper wood of the tree. Thus the whole is enlarged,... | |
| 1836 - 284 páginas
...the term of its duration. It appears that the sap-vessels, under the bark, which are in a soft spongy state during the summer, harden in the winter, and...annual additions are in general clearly discernible. In looking at the end of a piece of timber, or the arm of a tree newly cut, the parts within two or... | |
| John Keese - 1845 - 152 páginas
...besides eyes seems needful to constitute an accurate observer of nature. It appears that the sap vessels, just under the bark, which are in a soft spungy state...rises in another circle of vessels, pushing the bark outward ; and, in its turn, changes into the close-grained proper wood of the tree. Thus the whole... | |
| Lambert Lilly - 1845 - 270 páginas
...and spongy in the summer, and harden and get to be firm wood in the winter : when spring comes again, fresh sap rises in another circle of vessels, pushing the bark outwards ; and this in turn hardens again in the winter, and so it goes on year after year, forming new circles until... | |
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