| 1842 - 528 páginas
...cratrs, and thry teyin t» abiort oxygen and to give off carbonic acid. But tliif latter process does not go on so rapidly as the former, so that, on the...of the whole carbon contained by a plant, which has Deen derived from the air, is greatly modified also by the quality of the soil in which it grows, and... | |
| Charles McIntosh - 1855 - 900 páginas
...reversed, and they begin to absorb oxygen, and give off carbonic acid. But the latter process does not go on so rapidly as the former ; so that, on the...the season, with the climate, and with the kind of plant. The proportion of its carbon which has been derived from the air is greatly modified, also,... | |
| 1856 - 590 páginas
...reverted; they l>egin to absorb oxygen, and to give of carbonic acid, though the latter process does not go on so rapidly as the former ; so that on the...whole, plants, when growing, gain a large portion from the air. The actual quantity varies with the season, with the climate, and the kind of planta... | |
| Edward Enfield - 1866 - 324 páginas
...reversed, and they begin to absorb oxygen and to give off carbonic acid. But the latter process does not go on so rapidly as the former ; so that, on the...growing, gain a large portion of carbon from the air." Thus does respiration keep up its unceasing work through the leaves or lungs, and, by appropriating... | |
| 1881 - 778 páginas
...carbonic acid gas. But at night this process does not go on so rapidly as in the day-time, so that plants, when growing, gain a large portion of carbon from the air. The magnitude and method of this wonderful operation of nature forms a very interesting study. A subject... | |
| 1842 - 528 páginas
...begin to abiorb oxyyen and lo gire >¡ff carbonic arid. But ttii« latter iirnoess does not go on su rapidly as the former, so that, on the whole, plants...by a plant, which has been derived from the air, is grcally modilied abo by the quality of the soil in which it grows, and by the comparative abundance... | |
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