diff --git a/Triangulation_on_sphere_2/demo/Triangulation_on_sphere_2/main.cpp b/Triangulation_on_sphere_2/demo/Triangulation_on_sphere_2/main.cpp
index 9b492a82213..99bf18bc2ec 100644
--- a/Triangulation_on_sphere_2/demo/Triangulation_on_sphere_2/main.cpp
+++ b/Triangulation_on_sphere_2/demo/Triangulation_on_sphere_2/main.cpp
@@ -13,8 +13,6 @@
 #include <QInputDialog>
 #include <CGAL/Three/Three.h>
 
-#include <boost/iterator/transform_iterator.hpp>
-
 #include <list>
 #include <fstream>
 
diff --git a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere.cpp b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere.cpp
index 05a9135b26c..01a32e9e9a6 100644
--- a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere.cpp
+++ b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere.cpp
@@ -36,7 +36,7 @@ int main(int, char**)
     std::cout << "It has:\n";
     std::cout << dtos.number_of_vertices() << " vertices\n";
     std::cout << dtos.number_of_edges() << " edges\n";
-    std::cout << dtos.number_of_faces() << " solid faces\n";
+    std::cout << dtos.number_of_solid_faces() << " solid faces\n";
     std::cout << dtos.number_of_ghost_faces() << " ghost faces\n" << std::endl;
   }
 
diff --git a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_geo.cpp b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_geo.cpp
index f2dcb474906..23bed505d5b 100644
--- a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_geo.cpp
+++ b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_geo.cpp
@@ -54,7 +54,7 @@ int main(int argc, char** argv)
   DToS2 dtos(points.begin(), points.end(), traits);
 
   std::cout << dtos.number_of_vertices() << " vertices" << std::endl;
-  std::cout << dtos.number_of_faces() << " solid faces" << std::endl;
+  std::cout << dtos.number_of_solid_faces() << " solid faces" << std::endl;
   std::cout << dtos.number_of_ghost_faces() << " ghost faces" << std::endl;
 
   CGAL::IO::write_OFF("result.off", dtos, CGAL::parameters::stream_precision(17));
diff --git a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_proj.cpp b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_proj.cpp
index 814c36b7089..3dafdcf9bca 100644
--- a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_proj.cpp
+++ b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_proj.cpp
@@ -3,8 +3,6 @@
 #include <CGAL/Delaunay_triangulation_on_sphere_2.h>
 #include <CGAL/Projection_on_sphere_traits_3.h>
 
-#include <boost/iterator/transform_iterator.hpp>
-
 typedef CGAL::Exact_predicates_inexact_constructions_kernel          K;
 
 typedef CGAL::Projection_on_sphere_traits_3<K>                       Traits;
@@ -36,7 +34,7 @@ int main(int, char**)
     std::cout << "The triangulation now has dimension: " << dtos.dimension() << " and\n";
     std::cout << dtos.number_of_vertices() << " vertices" << std::endl;
     std::cout << dtos.number_of_edges() << " edges" << std::endl;
-    std::cout << dtos.number_of_faces() << " solid faces" << std::endl;
+    std::cout << dtos.number_of_solid_faces() << " solid faces" << std::endl;
     std::cout << dtos.number_of_ghost_faces() << " ghost faces" << std::endl;
   }
 
diff --git a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_range.cpp b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_range.cpp
index c6c433f824c..682eb394ffe 100644
--- a/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_range.cpp
+++ b/Triangulation_on_sphere_2/examples/Triangulation_on_sphere_2/triang_on_sphere_range.cpp
@@ -38,7 +38,7 @@ int main(int argc, char** argv)
   DToS2 dtos(points.begin(), points.end(), traits);
 
   std::cout << dtos.number_of_vertices() << " vertices" << std::endl;
-  std::cout << dtos.number_of_faces() << " solid faces" << std::endl;
+  std::cout << dtos.number_of_solid_faces() << " solid faces" << std::endl;
 
   CGAL::IO::write_OFF("result.off", dtos, CGAL::parameters::stream_precision(17));
 
diff --git a/Triangulation_on_sphere_2/include/CGAL/Delaunay_triangulation_on_sphere_2.h b/Triangulation_on_sphere_2/include/CGAL/Delaunay_triangulation_on_sphere_2.h
index a447bc7e335..b235ad31d47 100644
--- a/Triangulation_on_sphere_2/include/CGAL/Delaunay_triangulation_on_sphere_2.h
+++ b/Triangulation_on_sphere_2/include/CGAL/Delaunay_triangulation_on_sphere_2.h
@@ -27,7 +27,6 @@
 #include <CGAL/spatial_sort_on_sphere.h>
 #include <CGAL/Spatial_sort_traits_adapter_3.h>
 
-#include <boost/iterator/transform_iterator.hpp>
 #include <boost/property_map/function_property_map.hpp>
 
 #include <algorithm>