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Published online by Cambridge University Press: 07 November 2014
page 27 note * In the original paper F was put = Σh 2 (u′−u)2, and the quantity which was made a minimum was λ2S+Σh 2(u′−u)2, or in the present notation, (since . To make this a minimum is the same thing as to make (S+εF) a minimum, because h 2/ε is a constant factor.