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I SHOULD fancy from the review by “G. H. B.” in NATURE of July 19 (p. 265) that the papers of Prof. Levi Civita relate largely to the mixed transformation of Lagrange's equations, the complete theory ...

This is a preview. Log in through your library . Abstract A routine practice in the analysis of repeated measurement data is to represent individual responses by a mixed effects model on some ...

MR. A. B. BASSET, in a letter to NATURE of August 2, states that the theory of the mixed transformation was first given by himself in 1887, and refers to his treatise on “Hydrodynamics,” vol. i. p.