A major obstacle in attempting quantitative investigations of the influence of microstreaming on solid‐liquid interface reactions has been the inability to prevent gaseous cavitation (which destroys the orderly streaming action) from occurring in the liquid medium when the latter is subjected to a high‐amplitude sound field. The present article describes a modification of an earlier experimental arrangement, used to study microstreaming effects on a specific interphase chemical reaction (i.e., development of a photographic emulsion), which incorporates a means for suppressing undesired cavitation. Preliminary results obtained using this apparatus are presented. These results permit a more precise correlation between observed effects and properties of the streaming field than has hitherto been possible. Preliminary data indicating the extent to which microstreaming affects the local development rate are also presented.