General Symposia (Section M) 1. Aims and values of soil analysis. See Section B. 2. Radio-active Dating. See Section A. The following papers were also read:— Baumgart, I. L. The pumice soils. Birrell, K. S. The effect of allophane on certain physical and chemical properties of volcanic soils. Dixon, J. K. and Jackman, R. H. Some chemical aspects of pumice soils. Fieldes, M. The nature of clay in New Zealand soil types. Gradwell, M. W. Soil frost phenomena at a high country station. Jackman, R. H. Biological fixation of phosphorus in soils under pasture. Metson, A. J., Arbuckle, R. H. and Saunders, M. L. The potassium status of some New Zealand and Pacific Island soils as indicated by a modified normal nitric acid extraction procedure. Orchiston, H. D. The application of adsorption isotherms to the identification of clay minerals. Packard, R. Q. Moisture relations of Taupo ash soils. Raeside, J. D. The yellow grey earths of the South Island. Thornton, R. H. and Rose, R. E. Contributions to the biology of pumice soils. Wells, N. Plant composition in relation to soil type.
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Transactions and Proceedings of the Royal Society of New Zealand, Volume 82, 1954-55, Page 971
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182General Symposia (Section M) Transactions and Proceedings of the Royal Society of New Zealand, Volume 82, 1954-55, Page 971
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