 | Justus Freiherr von Liebig, Lyon Playfair Baron Playfair - 1840 - Liczba stron: 420
...may be asked, Is the quantity of carbonic acid in the atmosphere, which scarcely amounts to I -10th per cent., sufficient for the wants of the whole vegetation...easily answered. It is known, that a column of air of 2216.66 Ibs. weight, Hessian measure, rests upon every square Hessian foot of the surface of the earth;... | |
 | Justus Freiherr von Liebig - 1841 - Liczba stron: 468
...may be asked, Is the quantity of carbonic acid in the atmosphere, which scarcely amounts to l-10th per cent., sufficient for the wants of the whole vegetation...answered. It is known that a column of air, of 2216-66 lbs. weight, Hessian measure, rests upon every square Hessian foot of the surface of the earth ; the... | |
 | Justus Freiherr von Liebig, Lyon Playfair Baron Playfair - 1842 - Liczba stron: 450
...the atmosphere, is maintained constantly unchanged. in the atmosphere, which scarcely amounts to ^th per cent., sufficient for the wants of the whole vegetation...easily answered. It is known, that a column of air of 2441 Ibs. weight rests upon every square Hessian foot (= 0-567 square foot English) of the surface... | |
 | Henry Minchin Noad - 1841 - Liczba stron: 362
...observes Liebig, " is the quantity of carbonic acid in the atmosphere, which scarcely amounts to -^th per cent. sufficient for the wants of the whole vegetation...;t the diameter of the earth, and its superficies are likewise known, so that the weight of the atmosphere can be calculated with the greatest exactness.... | |
 | Justus Freiherr von Liebig, Lyon Playfair Baron Playfair - 1843 - Liczba stron: 446
...It may be asked — Is the quantity of carbonic acid in the atmosphere, scarcely amounting to l-10th per cent., sufficient for the wants of the whole vegetation...easily answered. It is known that a column of air of 1427 Ibs. weight rests upon every square Hessian foot (=0.567 square foot English) of the surface of... | |
 | Justus Freiherr von Liebig, Lyon Playfair Baron Playfair - 1843 - Liczba stron: 260
...be asked — is the quantity of carbonic acid in the atmosphere, which scarcely amounts to 1-1 Oth per cent., sufficient for the wants of the whole vegetation...easily answered. It is known, that a column of air of 2-441 Ibs. weight rests upon everv square Hessinn foot (—0.567 square foot fenglish) of the surface... | |
 | Justus Freiherr von Liebig - 1843 - Liczba stron: 446
...may be asked, — Is the quantity of carbonic acid in the atmosphere, which scarcely amounts to Jj,th per cent., sufficient for the wants of the whole vegetation...carbon of plants has its origin from the air alone 1 This question is very easily answered. It is known, that a column of air of 2441 Ibs. weight rests... | |
 | 1843 - Liczba stron: 800
...maybe asked, is the quantity of carbonic acid in the atmosphere, which scarcely amounts to onetenth per cent., sufficient for the wants of the whole vegetation...carbon of plants has its origin from the air alone V9 The affirmative of this, Dr. Liebig has satisfactorily shown to be the case. He says, " The experiments... | |
 | 1843 - Liczba stron: 770
...air con afford the necessary supply of carbon to the vegetable world. This question, says M. Liebig, is very easily answered. " It is known, that a column of air of 2216.66 Ibs. weight, Hessian measure, rests upon every square Hessian foot of the surface of the earth;... | |
 | Robert Rigg - 1844 - Liczba stron: 292
...atmosphere comprising onethousandth part of its weight of carbonic acid contains sufficient carbon for the wants of the whole vegetation on the surface of the earth ; he says, — " By this calculation it can be shown that the atmosphere contains 3000 billion lbs.... | |
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I -10th per cent., sufficient for the wants of the whole vegetation on the surface of the earth, — is it possible that the carbon of plants has its origin from the air alone ? This question is very easily answered. It is known, that a column of air... 
