diff --git a/.gitattributes b/.gitattributes
index 770a97f..a9b7bd1 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -352,12 +352,15 @@ src/H5Block.h -text
 src/H5Fed.c -text
 src/H5Fed.h -text
 src/H5Fed_adjacency.c -text
+src/H5Fed_adjacency.h -text
 src/H5Fed_boundaries.c -text
 src/H5Fed_boundaries.h -text
 src/H5Fed_inquiry.c -text
+src/H5Fed_inquiry.h -text
 src/H5Fed_map.c -text
 src/H5Fed_map.h -text
 src/H5Fed_retrieve.c -text
+src/H5Fed_retrieve.h -text
 src/H5Fed_store.c -text
 src/H5Fed_store.h -text
 src/H5Part.c -text
diff --git a/src/H5Fed_adjacency.h b/src/H5Fed_adjacency.h
new file mode 100644
index 0000000..d9bfeb3
--- /dev/null
+++ b/src/H5Fed_adjacency.h
@@ -0,0 +1,31 @@
+#ifndef __H5FED_ADJACENCY_H
+#define __H5FED_ADJACENCY_H
+
+h5_err_t
+H5FedGetEdgesUpAdjacentToVertex (
+	h5_file_t * const f,
+	const h5_id_t local_vid,
+	h5_idlist_t **list
+	);
+
+h5_err_t
+H5FedGetTrianglesUpAdjacentToVertex (
+	h5_file_t * const f,
+	const h5_id_t local_vid,
+	h5_idlist_t **list
+	);
+
+h5_err_t
+H5FedGetTetsUpAdjacentToVertex (
+	h5_file_t * const f,
+	const h5_id_t local_vid,
+	h5_idlist_t **list
+	);
+
+h5_err_t
+H5FedReleaseListOfAdjacencies (
+	h5_file_t * const f,
+	h5_idlist_t **list
+	);
+
+#endif
diff --git a/src/H5Fed_inquiry.h b/src/H5Fed_inquiry.h
new file mode 100644
index 0000000..0bb4be2
--- /dev/null
+++ b/src/H5Fed_inquiry.h
@@ -0,0 +1,68 @@
+/*
+  Header file for declaring the H5Fed application programming
+  interface (API) in the C language.
+  
+  Copyright 2006-2007
+ 	Paul Scherrer Institut, Villigen, Switzerland;
+ 	Benedikt Oswald;
+ 	Achim Gsell
+ 	All rights reserved.
+ 
+  Authors
+ 	Achim Gsell
+  
+  Warning
+	This code is under development.
+ 
+ */
+#ifndef __H5FED_INQUIRY_H
+#define __H5FED_INQUIRY_H
+
+h5_size_t
+H5FedGetNumMeshes (
+	h5_file_t * const f,
+	const h5_oid_t mesh_type_id
+	);
+
+h5_size_t
+H5FedGetNumLevels (
+	h5_file_t * f
+	);
+
+h5_id_t
+H5FedGetLevel (
+	h5_file_t * f
+	);
+
+h5_size_t
+H5FedGetNumVertices (
+	h5_file_t * f
+	);
+
+h5_size_t
+H5FedGetNumVerticesTotal(
+	h5_file_t * f
+	);
+
+h5_size_t
+H5FedGetNumVerticesCnode (
+	h5_file_t * f,
+	const h5_id_t cnode
+	);
+
+h5_size_t
+H5FedGetNumElements (
+	h5_file_t * f
+	);
+
+h5_size_t
+H5FedGetNumElementsTotal (
+	h5_file_t * f
+	);
+
+h5_size_t
+H5FedGetNumElementsCnode (
+	h5_file_t * f,
+	const h5_id_t cnode
+	);
+#endif
diff --git a/src/H5Fed_retrieve.h b/src/H5Fed_retrieve.h
new file mode 100644
index 0000000..69998a2
--- /dev/null
+++ b/src/H5Fed_retrieve.h
@@ -0,0 +1,52 @@
+/*
+  Copyright 2007-2009
+ 	Paul Scherrer Institut, Villigen, Switzerland;
+ 	Benedikt Oswald;
+ 	Achim Gsell
+ 	All rights reserved.
+ 
+  Authors
+ 	Achim Gsell
+  
+  Warning
+	This code is under development.
+ 
+ */
+#ifndef __H5FED_RETRIEVE_H
+#define __H5FED_RETRIEVE_H
+
+h5_err_t
+H5FedBeginTraverseVertices (
+	h5_file_t * f
+	);
+
+h5_id_t
+H5FedTraverseVertices (
+	h5_file_t * f,
+	h5_id_t	* const	id,
+	h5_float64_t P[3]
+	);
+
+h5_err_t
+H5FedEndTraverseVertices (
+	h5_file_t * f
+	);
+
+h5_err_t
+H5FedBeginTraverseElements (
+	h5_file_t * f
+	);
+
+h5_id_t
+H5FedTraverseElements (
+	h5_file_t * f,
+	h5_id_t * const id,
+	h5_id_t * const parent_id,
+	h5_id_t * const vertex_ids
+	);
+
+h5_err_t
+H5FedEndTraverseElements (
+	h5_file_t * f
+	);
+#endif