 | 1876 - 348 頁
...diffusion of the elaborated sap, gave interesting results. Mr. Clark says : — " I find that the crnde sap imbibed by the root-hairs from the surface of the particles of the soil seems to be taken up in a dry state ; that is, it appears to be absorbed molecule by molecule, no fluid water being visible,... | |
 | Massachusetts - 1875 - 692 頁
...at any season to force water to any considerable height when separated from their stems. Upon tliis point a large number of observations have been made,...surface of the particles of the soil seems to be taken up in a dry state, that is, it appears to be absorbed molecule by molecule, no fluid water being visible,... | |
 | Sir Norman Lockyer - 1875 - 870 頁
...sap rises, and on the diffusion of the elaborated sap, gave interesting results. Mr. Clark says : " We find that the crude sap imbibed by the root-hairs...surface of the particles of the soil seems to be taken up in a dry state ; that is, it appears to be absorbed molecule by molecule, no fluid water being visible,... | |
 | Sir Norman Lockyer - 1875 - 836 頁
...sap rises, and on the diffusion of the elaborated sap, gave interesting results. Mr. Clark says : " We find that the crude sap imbibed by the root-hairs...surface of the particles of the soil seems to be taken up in a dry state ; that is, it appears to be absorbed molecule by molecule, no fluid water being visible,... | |
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Upon this point a large number of observations have been made, which will be described in another place. The roots of all plants growing on ordinary soil develop most freely and absorb most abundantly when the earth is well drained and aerated. Thus we... 