diff --git a/doc/hoxsl.texi b/doc/hoxsl.texi
index ca9b437..57d6561 100644
--- a/doc/hoxsl.texi
+++ b/doc/hoxsl.texi
@@ -40,6 +40,11 @@ Free Documentation License".
 @top Main
 @end ifnottex
 
+
+@chapter Higher-Order Functions
+@include ../src/apply.texi
+
+
 @menu
 * License:: Document License
 @end menu
diff --git a/src/apply.xsl b/src/apply.xsl
index ff632b7..8539488 100644
--- a/src/apply.xsl
+++ b/src/apply.xsl
@@ -164,4 +164,16 @@
   </message>
 </template>
 
+
+<!--
+  @section Partial Application
+  @include ../src/apply/partial.texi
+
+  @section Thrush
+  @include ../src/apply/thrush.texi
+
+  @section Ref API
+  @include ../src/apply/ref.texi
+-->
+
 </stylesheet>