Soil Science Volume 8 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 Excerpt: ...by opening the cock wide. Duplicate measurements usually agree within 0.1 millivolt and constant potentials are maintained for several minutes or longer. A table showing the possible accuracy is given. These results are undoubtedly more accurate than any previously reported on plants. REFERENCES (1) Bunzell, H. H. 1916 The relationship existing between the oxidase activity of plant juices and their hydrogen-ion concentrations, with a note on the cause of oxidase activity of plant tissues. In Jour. Biol. Chem., v. 28, p. 315-333. (2) Clark, W. M. 1915 A hydrogen electrode vessel. In Jour. Biol. Chem., v. 23, p. 475-486. (3) Clark, W. M., And Lubs, H. A. 1916 Hydrogen electrode potentials of phthalate, phosphate, and borate buffer mixtures. In Jour. Biol. Chem., v. 25, p. 479-510. (4) Crocker, W. 1917 Imbibition. Rev. in Bot. Gaz., v. 64, p. 526-527. (5) Cummincs, A. C, And Gilchrist, E. 1913 The effect of variations in the nature of the liquid boundary on the electromotive force. In Trans. Faraday Soc, v. 9, p. 174-185. (6) Desha, L. J., And Acree, S. F. 1911 On the difficulties in the use of the hydrogen electrode in the measurement of the concentration of hydrogen-ions in the presence of organic compounds. In Amer. Chem. Jour., v. 46, p. 638-648. (7) Haas, A. R. C. 1917 The reaction of plant protoplasm. In Bot. Gaz., v. 63, p. 232 235. (8) Haas, A. R. C. 1919 The electrometric titration of plant juices. In Soil ScL, v. 7, p. 487-491. (9) Hempel, Jenny 1916 Bidrag til Kundskaben om Succulenternes Fysiologi., Copen hagen: H. Hagerup, 147 p., also in Physiol. Abs., v. 2, p. 146. (10) Kappen, H. 1918 Untersuchungen an Wurzelsaften. In Landw. Vers. Stat., Bd. 91, p. 1-40. (11) Looms, N. E., And Acree, S. F. 1911 A study of the hydrogen electrode, of the calomel...