diff --git a/data/tests/ModelRefineTests/log.txt b/data/tests/ModelRefineTests/log.txt
index 0a40dabd71..24e56449b5 100644
--- a/data/tests/ModelRefineTests/log.txt
+++ b/data/tests/ModelRefineTests/log.txt
@@ -28,7 +28,7 @@ ZMoterMountscripted			pass
 
 * I thought this was because of the float to double bug, but it's not....Float to double might have been a factor, but there is another problem. I rebuilt this condition from scratch and refine works with no corruption. If I save this file and re-open it, refine works, but corrupts the model. shell is open. This is true in either fcstd or brep format. weird! This is the second version of this file as to rule out any chance of the float to double bug. This is real flaky and it won't be the last time we deal with this. I keep thinking about romans comment "don't abuse shapefix". http://opencascade.blogspot.com/2009/03/topology-and-geometry-in-open-cascade.html?showComment=1236718620000#c8850560473418361068
 
-Here are some tolerance numbers for cylinder7_V2. new is from the new construction code that uses shapefix to build missing seem edges. The old code does't consider the formation of complete cylnder and failed several tests.
+Here are some tolerance numbers for cylinder7_V2. new is from the new construction code that uses shapefix to build missing seem edges. The old code doesn't consider the formation of complete cylinder and failed several tests.
 
 Draw[11]> tolerance old
 Tolerance MAX=2.0000099999999999e-07 AVG=1.2882835847679566e-07 MIN=9.9999999999999995e-08
diff --git a/src/Gui/ViewProviderOriginFeature.cpp b/src/Gui/ViewProviderOriginFeature.cpp
index 5413297868..05fb1a890b 100644
--- a/src/Gui/ViewProviderOriginFeature.cpp
+++ b/src/Gui/ViewProviderOriginFeature.cpp
@@ -178,7 +178,7 @@ void ViewProviderOriginFeature::setDisplayMode (const char* ModeName)
 
 bool ViewProviderOriginFeature::onDelete(const std::vector<std::string> &) {
     App::OriginFeature *feat = static_cast <App::OriginFeature *> ( getObject() );
-    // Forbid deletion if there is an origin thes feature belongs to
+    // Forbid deletion if there is an origin this feature belongs to
 
     if ( feat->getOrigin () ) {
         return false;
diff --git a/src/Mod/Mesh/Gui/SoFCMeshFaceSet.cpp b/src/Mod/Mesh/Gui/SoFCMeshFaceSet.cpp
index 0c1c1e5154..88056a11cd 100644
--- a/src/Mod/Mesh/Gui/SoFCMeshFaceSet.cpp
+++ b/src/Mod/Mesh/Gui/SoFCMeshFaceSet.cpp
@@ -387,7 +387,7 @@ void SoFCMeshFacet::getPrimitiveCount(SoGetPrimitiveCountAction * action)
  *
  * The GLRender() method checks the status of the SoFCInteractiveElement to decide to be in interactive mode or not.
  * To take advantage of this facility the client programmer must set the status of the SoFCInteractiveElement to \a true
- * if there is a user interation and set the status to \a false if not. This can be done e.g. in the actualRedraw() method of
+ * if there is a user interaction and set the status to \a false if not. This can be done e.g. in the actualRedraw() method of
  * the viewer.
  * \author Werner Mayer
  */
diff --git a/src/Mod/Mesh/Gui/SoFCMeshNode.cpp b/src/Mod/Mesh/Gui/SoFCMeshNode.cpp
index d48d2a5723..18cddc27b4 100644
--- a/src/Mod/Mesh/Gui/SoFCMeshNode.cpp
+++ b/src/Mod/Mesh/Gui/SoFCMeshNode.cpp
@@ -70,7 +70,7 @@ using namespace MeshGui;
  *
  * The GLRender() method checks the status of the SoFCInteractiveElement to decide to be in interactive mode or not.
  * To take advantage of this facility the client programmer must set the status of the SoFCInteractiveElement to \a true
- * if there is a user interation and set the status to \a false if not. This can be done e.g. in the actualRedraw() method of
+ * if there is a user interaction and set the status to \a false if not. This can be done e.g. in the actualRedraw() method of
  * the viewer.
  * \author Werner Mayer
  */
diff --git a/src/Mod/Mesh/Gui/SoFCMeshObject.h b/src/Mod/Mesh/Gui/SoFCMeshObject.h
index 946413cd40..992aa7c6c1 100644
--- a/src/Mod/Mesh/Gui/SoFCMeshObject.h
+++ b/src/Mod/Mesh/Gui/SoFCMeshObject.h
@@ -155,7 +155,7 @@ protected:
  * The GLRender() method checks the status of the SoFCInteractiveElement to decide to be in
  * interactive mode or not.
  * To take advantage of this facility the client programmer must set the status of the
- * SoFCInteractiveElement to \a true if there is a user interation and set the status to
+ * SoFCInteractiveElement to \a true if there is a user interaction and set the status to
  * \a false if not. This can be done e.g. in the actualRedraw() method of the viewer.
  *
  * @author Werner Mayer