diff --git a/doc/salome/gui/SMESH/images/extrusionalongaline1.png b/doc/salome/gui/SMESH/images/extrusionalongaline1.png
index 1fad9ebdd..2c303a246 100755
Binary files a/doc/salome/gui/SMESH/images/extrusionalongaline1.png and b/doc/salome/gui/SMESH/images/extrusionalongaline1.png differ
diff --git a/doc/salome/gui/SMESH/images/extrusionalongaline2.png b/doc/salome/gui/SMESH/images/extrusionalongaline2.png
index b2991db74..cda0d0acc 100755
Binary files a/doc/salome/gui/SMESH/images/extrusionalongaline2.png and b/doc/salome/gui/SMESH/images/extrusionalongaline2.png differ
diff --git a/doc/salome/gui/SMESH/input/extrusion.doc b/doc/salome/gui/SMESH/input/extrusion.doc
index 82c054677..f079530be 100644
--- a/doc/salome/gui/SMESH/input/extrusion.doc
+++ b/doc/salome/gui/SMESH/input/extrusion.doc
@@ -45,7 +45,7 @@ about filters in the \ref selection_filter_library_page "Selection filter librar
 </ul>
 <li>If the <b>Extrude Along Vector</b> radio button is selected</li>
 <ul>
-<li>specify the vector along which the elements will be extruded, or select the face (the normale to the face will define the vector)</li>
+<li>specify the coordinates of the vector along which the elements will be extruded, or select the face (the normal to the face will define the vector)</li>
 <li>specify the distance of extrusion along the vector,</li>
 </ul>
 <li>specify the number of steps;</li>
diff --git a/doc/salome/gui/SMESH/input/group_of_underlying_elements.doc b/doc/salome/gui/SMESH/input/group_of_underlying_elements.doc
index 5491c3ed2..a6a1b91ff 100755
--- a/doc/salome/gui/SMESH/input/group_of_underlying_elements.doc
+++ b/doc/salome/gui/SMESH/input/group_of_underlying_elements.doc
@@ -1,6 +1,6 @@
 /*!
 
-\page group_of_underlying_elements_page "Create Group of Underlying Elements"
+\page group_of_underlying_elements_page Create Group of Underlying Elements
 
 
 To create groups of entities from existing groups of superior dimensions, in the \b Mesh menu select <b>Group of underlying entities</b>.<br>
diff --git a/doc/salome/gui/SMESH/input/revolution.doc b/doc/salome/gui/SMESH/input/revolution.doc
index 8e44e2d7d..1d13bb23a 100644
--- a/doc/salome/gui/SMESH/input/revolution.doc
+++ b/doc/salome/gui/SMESH/input/revolution.doc
@@ -45,7 +45,9 @@ about filters in the \ref selection_filter_library_page "Selection filter librar
 <ul>
 <li>specify the cooordinates of the start \b Point of the vector of revolution;</li>
 <li>specify the \b Vector of revolution through the coordinates of its
-end point with respect to the coordinates of the start point;</li>
+end point with respect to the coordinates of the start
+point. Alternatively, it is possible to specify the vector through the
+normal to the selected face.</li>
 </ul>
 </li>