typos

Surface_mesh/doc/Surface_mesh/Surface_mesh.txt

@@ -37,9 +37,9 @@ represent the basic elements of the halfedge data structure:
 - `Surface_mesh::Face_index`
 - `Surface_mesh::Edge_index`
 
-Descriptors are just a typed wrapper for an index
-and should be passed by value. They are
-default constructible, which yields an *invalid* element. New
+These types are just wrappers for an `unsigned int` and their
+main purpose is to guarantee type safety.  
+They are default constructible, which yields an *invalid* element. New
 simplices can be added and removed to the `Surface_mesh` through a
 set of low-level functions which do not maintain connectivity. One
 exception is `Surface_mesh::add_face()` which tries to add a new
@@ -94,7 +94,7 @@ face are oriented counterclockwise, as illustrated in
 \cgalFigureRef{FigSurfaceMeshConnectivity}
 
 
-\section sectionSurfaceMesh_iterators Ranges and Iterators and Circulators
+\section sectionSurfaceMesh_iterators Ranges and Iterators
 
 `Surface_mesh` provides iterator ranges to enumerate all vertices,
 halfedges, edges, and faces. It provides member functions
@@ -106,7 +106,7 @@ library.
 
 The following example shows how to obtain the iterator type from 
 a range, alternatives for obtaining the begin and end iterator,
-and alernatives for range-based for loops.
+and alternatives for range-based for loops.
 
 \cgalExample{Surface_mesh/sm_iterators.cpp}
 

Surface_mesh/include/CGAL/Surface_mesh/Surface_mesh.h

@@ -802,7 +802,7 @@ public:
     /// \name Range Types
     ///
     /// Each range `R` in this section has a nested type `R::iterator`, 
-    /// is convertible to `std:pair<R::iterator,R::iterator`, so that one can use `boost::tie()`,
+    /// is convertible to `std:pair<R::iterator,R::iterator>`, so that one can use `boost::tie()`,
     /// and can be used with `BOOST_FOREACH()`, as well as with the C++11 range based `for(..)` loop.
 
     ///@{
@@ -2286,8 +2286,9 @@ adjust_incoming_halfedge(Vertex_index v)
 template <typename P>
 template <typename Range>
 typename Surface_mesh<P>::Face_index
-Surface_mesh<P>::add_face(const Range& vertices)
+Surface_mesh<P>::add_face(const Range& r)
 {
+  std::vector<Vertex_index> vertices(r.begin(), r.end()); // quick and dirty copy
     Vertex_index                   v;
     unsigned int             i, ii, n((int)vertices.size()), id;
     std::vector<Halfedge_index>    halfedges(n);