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TindalSound: from English: 204 ill.In the text / per.M.A.Antonovich.-2nd ed., Rus., Related with the last 6th English.ed.And with him.per.A. Helmholtz and CL.Dubua Ramon, additional.on the 6th English.ed.-Sank-Petersburg: ed.T -va "Knowledge", 1901. -[3], III, [5], 242, [2] p.: il., table .. -Part of the text in English.ulcer.Bibliogr.In the tuning.Note..I. Dubua-Ramon, K .. II.Helmholtz, A .. III.Antonovich, M.A.1.People (collection).Electronic copy source: PBOriginal storage: St. Petersburg State University