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Published online by Cambridge University Press: 27 November 2014
† p. 163.
† p. 165.
‡ p. 48.
§ p. 107.
† p. 6.
‡ One of our members might like to do some research into the history of these methods and the reason for the discrepancies in nomenclature which have developed. We feel that the results of such a study would probably merit publication in this Journal. Editor.