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XVI.—The Sizes of Particles in certain Pelagic Deposits
Published online by Cambridge University Press: 15 September 2014
Extract
The monumental work of the late Sir John Murray and Dr Renard on the examination and classification of deep-sea deposits has left little to be desired either as regards methods or results. There was, however, one respect in which they were handicapped—no satisfactory method was known of ascertaining the distribution of sizes of the particles of which a sample was composed.
In 1915 Dr Sven Odén of Upsala made known a method of soil analysis whereby he obtained by a sedimentation process data from which he could construct the distribution curve representing the relative proportions of particles of various sizes. He later obtained from the Challenger Office several samples of different types of deep-sea deposit which he subjected to the same form of analysis.
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- Copyright © Royal Society of Edinburgh 1924
References
page 219 note * Report of Scientific Results of H.M.S. Challenger (1873–76). Deep-Sea Deposits (1891).
page 219 note † International Reports on Pedology, vol. iv, p. 257, 1915. [Obtainable on loan, in German, from the Ministry of Agriculture and Fisheries, 10 Whitehall Place, London, S.W. 1.]
page 219 note ‡ Proc. Roy. Soc. Edin., vol. xxxvi, p. 219, 1915–16.
page 219 note § G. Vibert Douglas, M.C., M.Sc.
page 219 note ║ Commander F. A. Worsley, D.S.O., O.B.E., R.D., R.N.R., and J. D. Dell, C.P.O., R.N.
page 220 note * Proc. Roy. Soc. Edin., vol. xxxvi, p. 237 (1915–16).
page 220 note † Nature, December 23, 1922, p. 845.
page 220 note ‡ In a sample of deposit weighing 10 gms., whose average density is 2·6 and whose average radius is 20 μ, the approximate number of particles is 108.
page 221 note * Mr R. Kirkpatrick of the British Museum (Nat. Hist.) has kindly examined the micro-slides and named the deposits.