. Practical physiology of plants. Plant physiology; 1894. CH. Il] CULTURE WITHOUT CO2. 25 the plants must be closed by a rubber cork through which passes a tube of soda-lime like the one shown in fig. 5. A similar flask filled with spring water (to which a little extra CO^ may be added by blowing air from the lungs through it) and closed by a U tube containing coarse sand, will serve for a control. The COj may also according to Pfeffer' be removed by careful treatment with lime water. LaTid-plants. Seedlings with their roots in water, or plants of. Pig. 5. Exp. 34. 1 Pfeffer, Physiologie, i. p
. Practical physiology of plants. Plant physiology; 1894. CH. Il] CULTURE WITHOUT CO2. 25 the plants must be closed by a rubber cork through which passes a tube of soda-lime like the one shown in fig. 5. A similar flask filled with spring water (to which a little extra CO^ may be added by blowing air from the lungs through it) and closed by a U tube containing coarse sand, will serve for a control. The COj may also according to Pfeffer' be removed by careful treatment with lime water. LaTid-plants. Seedlings with their roots in water, or plants of. Pig. 5. Exp. 34. 1 Pfeffer, Physiologie, i. p. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Darwin, Francis, Sir, 1848-1925; Acton, Edward Hamilton, d. 1895; Lindley, Nathaniel Lindley, Baron, 1828-1921. sgn. Cambridge, University Press
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplantph, bookyear1894
