} /* LoadStatsForSelectedGroup */

        private void  LoadStatsForOneSipperFile(String sfn)
        {
            curSipperFileName = sfn;
            uint[] nextBunch = dbConn.ImageGetDepthStatistics
                                   (null, // ImageGroup
                                   sfn,
                                   depthIncrements,
                                   mlClass,
                                   classKeyToUse,
                                   probMin, probMax,
                                   sizeMin, sizeMax
                                   );

            if ((nextBunch == null) || (nextBunch.Length < 1))
            {
                return;
            }

            {
                PicesVolumeSampledStatList statsThisClass = dbConn.InstrumentDataGetVolumePerMeterDepth(sfn, depthIncrements);

                if (volumeWaterSampled == null)
                {
                    volumeWaterSampled = statsThisClass;
                }
                else
                {
                    volumeWaterSampled.MergeIn(statsThisClass);
                }
            }

            blocker.StartBlock();
            AddNextBunchIntoLoadedStats(ref loadedStats, nextBunch, ref imageCountTotal);
            newStatsAvailable = true;
            blocker.EndBlock();
        } /* LoadStatsForOneSipperFile */