diff --git a/Classification/include/CGAL/Classification/Feature_base.h b/Classification/include/CGAL/Classification/Feature_base.h
index a6e1056a921..5a85611e0bd 100644
--- a/Classification/include/CGAL/Classification/Feature_base.h
+++ b/Classification/include/CGAL/Classification/Feature_base.h
@@ -33,13 +33,6 @@ namespace Classification {
 
   \brief Abstract class describing a classification feature that
   associates a scalar value to each item of the classification input.
-
-  User-defined features must inherit this class. Feature objects are
-  generated by `CGAL::Classifier` objects by the method
-  `CGAL::Classifier::add_feature()`. For this method to work, the
-  first argument of the feature's constructors must be of type
-  `ItemRange&` (where `ItemRange` is the first template argument of
-  `CGAL::Classifier`).
 */
 
 
@@ -66,9 +59,9 @@ public:
   void set_name (const std::string& name) { m_name = name; }
   
   /*!
-    \brief Returns the value taken by the feature for at the item at
-    position `index`. This method must be implemented by inherited
-    classes.
+    \brief Returns the value taken by the feature for at the item for
+    the item at position `index`. This method must be implemented by
+    inherited classes.
   */
   virtual float value (std::size_t index) = 0;