SECONDARY ONOMATOPOEIA, ALSO REFERRED TO AS "SOUND-SYMBOLISM," DESIGNATES THE REPRESENTATION IN SPEECH SOUNDS OF NON-ACOUSTIC EXPERIENCES. THE NON-ACOUSTIC EXPERIENCES DEALT WITH ARE VISUAL (IMPRESSIONS OF MAGNITUDE AND LUMINOSITY) AND EMOTIONAL (MOODS OF GLOOM AND HAPPINESS). THIS PAPER DESCRIBES AN EMPIRICAL STUDY DESIGNED TO EXPLORE THE POSSIBILITY THAT--(1) RUSSIANS ASSOCIATE DIFFUSE VOWEL SOUNDS WITH SMALL MAGNITUDES, AND COMPACT VOWEL SOUNDS WITH LARGE ONES, AND (2) THEY ASSOCIATE ACUTE VOWEL SOUNDS WITH BRIGHT LIGHT AND HAPPINESS, AND GRAVE VOWEL SOUNDS WITH DARKNESS AND GLOOM. THIS STUDY WAS TAKEN UP IN VIEW OF PREVIOUS EXPERIMENTS, ESPECIALLY THOSE REPORTED BY MAXIME CHASTAING IN "ARCHIVUM LINGUISTICUM." THE RESULTS OF THE EXPERIMENT DESCRIBED HERE (CARRIED OUT IN THE SOVIET UNION IN 1967 WITH APPROXIMATELY 200 NATIVE RUSSIANS) SEEM TO INDICATE THAT VOWEL SOUNDS HAVE THE SAME CONNOTATIONS FOR RUSSIANS AS THEY DO FOR ENGLISH AND FRENCH SPEAKERS. SECONDARY ONOMATOPOEIA MAY THEREFORE BE A UNIVERSAL PHENOMENON. (AUTHOR/AMM)