 | Herbert Spencer - 1867 - 586 pages
...the younger ones there is a formation of wood. Thus, then, is confirmed the inference before drawn, that in ordinary stems the staining of the wood by...ducts and such of its pitted cells as are united into irregular canals. And the facts showing this, at the same indicate with tolerable clearness the process... | |
 | Herbert Spencer - 1871 - 608 pages
...confirmed the inference before drawn, that in ordinary stems the staining of the wood by au asceuuing coloured liquid is due. not to the passage of the coloured liquid up the bubsuuice of the wood, but to the permeability of its ducts and such of its pitted cells as are united... | |
 | Herbert Spencer - 1899 - 682 pages
...is a formation of wood. Thus, then, is confirmed the inference before drawn, that in ordinary steins the staining of the wood by an ascending coloured...ducts and such of its pitted cells as are united into irregular canals. And the facts showingthis, at the same time indicate with tolerable clearness the... | |
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... that are alike in age, some of the vessels retain their contents while others do not. Nay, we even find that the younger vessels are more pervious than the older ones, if round the younger ones there is a formation of wood. Thus, then, is confirmed... 