Nature, Volume 60Sir Norman Lockyer Macmillan Journals Limited, 1899 |
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Página 303
... carbon may be measured by the obtuseness of the angle ABC . In ( a ) the tip is very blunt , and the area of the crater is certainly less than any but its smallest cross - section ; therefore the arc is cer- tainly silent . In ( b ) the ...
... carbon may be measured by the obtuseness of the angle ABC . In ( a ) the tip is very blunt , and the area of the crater is certainly less than any but its smallest cross - section ; therefore the arc is cer- tainly silent . In ( b ) the ...
Página 478
... carbon dioxide entering a given area of the leaf in a certain time , and it was to the perfection of a method of this kind that Mr. Escombe and I first turned our attention . In all previous attempts to measure the rate of ingress of carbon ...
... carbon dioxide entering a given area of the leaf in a certain time , and it was to the perfection of a method of this kind that Mr. Escombe and I first turned our attention . In all previous attempts to measure the rate of ingress of carbon ...
Página 479
... carbon dioxide in 10 , coo of air , so that with an apparatus of this kind it is possible to estimate the intake of carbon dioxide into a leaf or plant from ordinary atmospheric air , and to keep a sufficiently rapid stream of air ...
... carbon dioxide in 10 , coo of air , so that with an apparatus of this kind it is possible to estimate the intake of carbon dioxide into a leaf or plant from ordinary atmospheric air , and to keep a sufficiently rapid stream of air ...
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