diff --git a/src/EvaluateField/evaluateField.cc b/src/EvaluateField/evaluateField.cc
index 9b4ec5a..b0daf5f 100644
--- a/src/EvaluateField/evaluateField.cc
+++ b/src/EvaluateField/evaluateField.cc
@@ -132,6 +132,12 @@ int main( int argc,  char *argv[] )
   outputVolume(volume, args.outputPath, output_type, signed_flag, real_min, real_max, 
                args.command);
 
+  delete theSplines;
+
+  delete_volume(volume);
+  if (args.use_mask)
+    delete_volume(mask_volume);
+
   return(0);
 } 
 
diff --git a/src/ExtractTag/extracttag.c b/src/ExtractTag/extracttag.c
index d81996c..5427b17 100644
--- a/src/ExtractTag/extracttag.c
+++ b/src/ExtractTag/extracttag.c
@@ -1366,6 +1366,7 @@ long int gen_seed(void)
     res = res - x * divisor;
     divisor /= 10;
   }
+
   return res;
 }
 
diff --git a/src/SplineSmooth/fieldIO.cc b/src/SplineSmooth/fieldIO.cc
index eddac37..e9ab1ff 100644
--- a/src/SplineSmooth/fieldIO.cc
+++ b/src/SplineSmooth/fieldIO.cc
@@ -209,16 +209,22 @@ VIO_Status inputCompactField(VIO_STR filename, Spline **splines,
       if( mni_skip_expected_character( file, (char) ';' ) != VIO_OK )
         return( VIO_ERROR );
 
+      delete_string(version_name);
+      delete_string(line);
       /* read next field */
       status = mni_input_string( file, &line, (char) '=', (char) 0 );
       if( status != VIO_OK || 
           mni_skip_expected_character( file, (char) '=' ) != VIO_OK )
-        return( status );
+        {
+          delete_string( line );
+          return( status );
+        }
     }
 
   /* --- read the type of field */
   if(!equal_strings( line, TYPE_STRING )) 
     return(VIO_ERROR);
+  delete_string( line );
   
   if( mni_input_string( file, &type_name, (char) ';', (char) 0 ) != VIO_OK )
     {
@@ -430,6 +436,7 @@ loadEmptyFloatVolume(const MString filename, nc_type *data_type, VIO_BOOL *signe
  
   *data_type = get_volume_nc_data_type(volume, signed_flag);
   delete_volume_input( &input_info);
+  delete_volume(volume);
   
   // open this time using float type
   if (start_volume_input((char *)(const char *)filename, VIO_N_DIMENSIONS, 
diff --git a/src/VolumeHist/minchist.cc b/src/VolumeHist/minchist.cc
index cb47ee6..2f94974 100644
--- a/src/VolumeHist/minchist.cc
+++ b/src/VolumeHist/minchist.cc
@@ -261,7 +261,15 @@ int main( int argc,  char *argv[] )
 	}
       fclose(fp);
     }
-  
+
+  delete [] class_min;
+  delete [] class_max;
+  delete_volume(volume);
+  if (args.mask_flag)
+    delete_volume(mask_volume);
+  for(i = 0; i < n_histograms; i++)
+    delete histogram[i];
+  free(histogram);
   return(0);
 } 
 
diff --git a/src/VolumeStats/volumeStats.cc b/src/VolumeStats/volumeStats.cc
index ac6d954..6cdc6ea 100644
--- a/src/VolumeStats/volumeStats.cc
+++ b/src/VolumeStats/volumeStats.cc
@@ -438,6 +438,9 @@ main(int argc, char *argv[])
     }
   }
 
+  if (mask)
+    delete_volume(mask);
+
   if (voxels)
     delete voxels;