The story of Marx abandoning further work on _Capital_ after reading Jevons and Menger is totally improbable. The only criticism which he worried about was that raised later by Boehm-Bawerk (Karl Marx and the Close of his System) and which Marx anticipated in vol. III (part II, ch. IX) of _Das Kapital_. Marxists scholars dismissed the Jevons Menger theory en passant (e.g., Antonio Labriola, in the Postscript to the French edition of _Socialism and Philosophy_ in 1898 and R. Luxemburg in the chapter "economic development and socialism" of _Reform or Revolution_ discussing the "Boehm-Jevons" (sic) reference of E. Bernstein. To my knowledge, the first complete discussion of the marginalist school by a marxist economist was that of Nikolai Bukharin, "The political economy of the rentier" written in 1914 and translated into English as _The Economic Theory of the Leisure Class_ in 1927. BTW, Bernard Shaw's fascination with Jevons [as Engel's Preface to vol. III cited by Michael Perelman points out] was the result of P.H. Wicksteed review of _Capital_ in Today (1884). Nicholas J. Theocarakis