The exptl. set-up consisted of presenting 2 lights at spatially separated positions and also sounding a buzzer from various positions between the lights. Ten observers made judgments of "left," "right," or "middle" depending on the region from which they heard the sound. One of the lights flickered in the same rhythm as the buzzer sounded. The results showed a tendency for the observers to skew their judgments of the sound''s location toward the "in-rhythm" light even when both lights were flickering. The reliability of these results receives most of its wt. from the consistency of this tendency. However, critical ratios calculated from the data showed at least half of the differences to be statistically reliable. The plausibility of such factors as conscious associations, experientially established meanings, and eye movements were reduced as explanations of the results. The results were interpreted as being a phenomenon of intersensory relations. Granting the functional unity of the senses the general conditions under which the phenomenon appears are a strongly structured, dis-equilibrated configuration in the influencing modality and a weakly structured, labile configuration in the influenced modality. Some of the laws of perceptual organization worked out for events within a modality as Wertheimer''s "factor of common fate" may apply in connection with these intersensory organizations.