 | Patrick Keith - 1816 - 588 páginas
...means of the production of a new bark issuing from the edges, and gradually narrowing the extent of the wound ; and then by the production of new layers of wood formed under the bark as before. The new wood will not indeed unite with the portion of alburnum that had been exposed to the air ;... | |
 | Sir Henry Steuart - 1828 - 536 páginas
...of the Bark ; of which parts the innermost is denominated the Liber, from its having been antiently used to write upon, before the invention of paper.*...layers of wood, formed under the bark, as before. * Keith's Physiological Botany, Vol. 1. p. 295. Du Hamel, Phyf. des Arbres, LI 3. 5. De Saussure, Encyclop.... | |
 | Sir Henry Steuart - 1832 - 444 páginas
...relates to this subject, so that he may be enabled to appreciate the above properties or prerequisites, I beg leave to call his attention to a few observations,...extends ; and hence also, the origin of grafting, * Keith's Physiological Botany, Vol. I. p. 295. — Du Humcl, Phys. des Arbres, LI 3. 5. — De Saussurc,... | |
 | Sir Henry Steuart - 1832 - 444 páginas
...a few observations, which I shall make upon each of them. For this purpose, let us consider the 117 relative nature and importance of these prerequisites,...extends ; and hence also, the origin of grafting, * Keith's Physiological Botany, Vol. I. p. 295 — Du Hamel, Phyg. dcs Arbres, LI 3. 5.— De Saussurc,... | |
 | Lawrence Rawstorne - 1837 - 250 páginas
...its having been anciently used to write upon, before the invention of paper. If the cortical layer be injured or destroyed by accident, the part is again...new layers of wood, formed under the bark as before. *' Early in the spring the sap begins to rise in woody plants, and continues to ascend till it reaches... | |
 | Lawrence Rawstorne - 1837 - 280 páginas
...its having been anciently used to write upon, before the invention of paper. If the cortical layer be injured or destroyed by accident, the part is again...new layers of wood, formed under the bark as before. ..-.:;" " Early in the spring the sap begins to rise in woody plants, and continues to ascend till... | |
 | John Towers (C.M.H.S.) - 1839 - 746 páginas
...means of the production of a new bark issuing from the edges, and gradually narrowing the extent of the wound, and then by the production of new layers of wood', formed under the bark as before. The new wood will not indeed unite with the portion of alburnum that had been exposed to the air: but... | |
 | 1850 - 436 páginas
...will heal, first by means of new bark issuing from the edges, and graduallv narrowing the extent of the wound ; and then by the production of new layers of wood formed under the bark as before. The new wood will not, indeed, unite with the portion of alburnum that had been exposed to the air... | |
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If the cortical layers be injured or destroyed by accident, the part is again regenerated, and the wound healed up, without a scar. If the wound have penetrated beyond the liber, the part is incapable of being regenerated ; because, when the surface of... 