diff --git a/doc/en/Gtk/ListStore.xml b/doc/en/Gtk/ListStore.xml
index 328567647..1c5866883 100644
--- a/doc/en/Gtk/ListStore.xml
+++ b/doc/en/Gtk/ListStore.xml
@@ -1552,9 +1552,9 @@ The above example creates a new three columns list store. The types of the colum
       <Parameters />
       <Docs>
         <summary>
-          <para>Returns a <see cref="T:System.Collections.IEnumerator" /> for the current instance.</para>
+          <para>Returns a <see cref="T:System.Collections.IEnumerator" /> for the current instance. The enumerated items are object arrays containing the column values for each row.</para>
         </summary>
-        <returns>a <see cref="T:System.Collections.IEnumerator" /></returns>
+        <returns>A <see cref="T:System.Collections.IEnumerator" /> enumerating items of type <see cref="T:System.Object" />[].</returns>
         <remarks>
           <para> If the elements of the current instance are modified while an enumeration is in progress, a call to <see cref="M:System.Collections.IEnumerator.MoveNext" /> or <see cref="P:System.Collections.IEnumerator.Current" /> throws <see cref="T:System.InvalidOperationException" />.</para>
         </remarks>
@@ -1582,4 +1582,4 @@ The above example creates a new three columns list store. The types of the colum
       </Docs>
     </Member>
   </Members>
-</Type>
+</Type>
\ No newline at end of file
diff --git a/doc/en/Gtk/Notebook.xml b/doc/en/Gtk/Notebook.xml
index 68f8499a2..6caba92d1 100644
--- a/doc/en/Gtk/Notebook.xml
+++ b/doc/en/Gtk/Notebook.xml
@@ -1088,7 +1088,7 @@ Don't forget to call the Show method on the widget or else the new page will not
         <summary>Appends a page.</summary>
         <param name="child">The <see cref="T:Gtk.Widget" /> to use as the contents of the page. </param>
         <param name="tab_label">The <see cref="T:Gtk.Widget" /> to be used as the label for the page, or <see langword="null" /> to use the default label, 'page N'.</param>
-        <returns>a <see cref="T:System.Int32" /></returns>
+        <returns>A <see cref="T:System.Int32" /> specifying the index (starting from 0) of the appended page in the notebook, or -1 if the method fails.</returns>
         <remarks>
           <para>
 	 Appends a page to notebook.  The tab widget is the <paramref name="tab_label" /> and the content is <paramref name="child" />.
@@ -1342,4 +1342,4 @@ Don't forget to call the Show method on the widget or else the new page will not
       </Docs>
     </Member>
   </Members>
-</Type>
+</Type>
\ No newline at end of file