This data book contains estimates of daily and monthly flows (discharges) at selected gauging stations on the Jubba and Shebelli rivers for varying periods between 1951 and 1989. It supersedes previous publications by the Hydrometry Project which contained provisional data only, and should also be preferred to other published daily and monthly data which will have been based in part on unchecked original data. For this volume all data has been checked, with errors corrected and missing values infilled where possibleit is also the fist time that all the. data has been collected in one volume.