diff --git a/src/Lib/Array/array.cxx b/src/Lib/Array/array.cxx
index 7ebf470a..1e7549cb 100644
--- a/src/Lib/Array/array.cxx
+++ b/src/Lib/Array/array.cxx
@@ -163,7 +163,7 @@ TGArray::parse( SGBucket& b ) {
         for ( int i = 0; i < fitted_size; ++i ) {
             *fitted_in >> x >> y >> z;
             fitted_list.push_back( Point3D(x, y, z) );
-            cout << " loading fitted = " << Point3D(x, y, z) << endl;
+            // cout << " loading fitted = " << Point3D(x, y, z) << endl;
         }
     }
 
diff --git a/src/Lib/Geometry/poly_support.cxx b/src/Lib/Geometry/poly_support.cxx
index e042e93f..b92cbb0e 100644
--- a/src/Lib/Geometry/poly_support.cxx
+++ b/src/Lib/Geometry/poly_support.cxx
@@ -1233,7 +1233,7 @@ static point_list remove_contour_cycles( const point_list& contour ) {
             if ( contour[i] == contour[j] && i + 2 > j ) {
                 cout << "detected a small cycle: i = "
                      << i << " j = " << j << endl;
-                for ( int k = i; k <= j; ++k ) {
+                for ( unsigned int k = i; k <= j; ++k ) {
                     cout << "  " << contour[k] << endl;
                 }
                 // i = j;
diff --git a/src/Lib/Polygon/polygon.cxx b/src/Lib/Polygon/polygon.cxx
index c0766491..7bc1af82 100644
--- a/src/Lib/Polygon/polygon.cxx
+++ b/src/Lib/Polygon/polygon.cxx
@@ -73,8 +73,8 @@ void TGPolygon::inherit_elevations( const TGPolygon &source ) {
     // traverse the dest polygon and build a mirror image but with
     // elevations from the source polygon
 
-    for ( i = 0; i < poly.size(); ++i ) {
-        for ( j = 0; j < poly[i].size(); ++j ) {
+    for ( i = 0; i < (int)poly.size(); ++i ) {
+        for ( j = 0; j < (int)poly[i].size(); ++j ) {
             Point3D p = poly[i][j];
             int index = nodes.find( p );
             if ( index >= 0 ) {
@@ -89,10 +89,10 @@ void TGPolygon::inherit_elevations( const TGPolygon &source ) {
     // weren't in the original.)
 
     double last = -9999.0;
-    for ( i = 0; i < poly.size(); ++i ) {
+    for ( i = 0; i < (int)poly.size(); ++i ) {
         // go front ways
         last = -9999.0;
-        for ( j = 0; j < poly[i].size(); ++j ) {
+        for ( j = 0; j < (int)poly[i].size(); ++j ) {
             Point3D p = poly[i][j];
             if ( p.z() > -9000 ) {
                 last = p.z();