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Estimate: $ 300 - $ 500
PAVLOV, IVAN PETROVICH. Dvadtsatiletnij opyt obektivnogo izuchenija vysshej nervnoj dejatel'nosti (povedenija) zhivotnykh. Uslovnye refleksy [Twenty Years of Experiments in the Objective Study of Higher Nervous Activity of Animals. Conditioned Reflexes]. Frontispiece portrait of Pavlov. 8vo, original wrappers, soiled, spine ends chipped and cover edges chipped; contents browned and brittle, institutional stamp and pencilled translation on title; bookplate. Moscow, 1923
